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The 2011 season’s official transaction log: 2,674 trades, signings and releases involving major-league clubs, listed newest first with MLB’s own description of each move.
| Date | Type | Player | From | To | Details |
|---|---|---|---|---|---|
| Dec 31, 2011 | Trade | Carlos Quentin | Chicago White Sox | San Diego Padres | Chicago White Sox traded RF Carlos Quentin to San Diego Padres for RHP Simon Castro and LHP Pedro Hernandez. |
| Dec 31, 2011 | Signed as free agent | Brian Bocock | — | Toronto Blue Jays | Toronto Blue Jays signed free agent SS Brian Bocock to a minor league contract and invited him to spring training. |
| Dec 31, 2011 | Signed as free agent | Aaron Laffey | — | Toronto Blue Jays | Toronto Blue Jays signed free agent LHP Aaron Laffey to a minor league contract and invited him to spring training. |
| Dec 30, 2011 | Signed as free agent | George Sherrill | — | Seattle Mariners | Seattle Mariners signed free agent LHP George Sherrill. |
| Dec 30, 2011 | Signed as free agent | Corey Wimberly | — | New York Mets | New York Mets signed free agent CF Corey Wimberly to a minor league contract. |
| Dec 30, 2011 | Signed as free agent | Gil Velazquez | — | Miami Marlins | Miami Marlins signed free agent 3B Gil Velazquez to a minor league contract and invited him to spring training. |
| Dec 30, 2011 | Signed as free agent | John Maine | — | Boston Red Sox | Boston Red Sox signed free agent John Maine. |
| Dec 29, 2011 | Signed as free agent | Robinzon Díaz | — | Los Angeles Angels | Los Angeles Angels signed free agent C Robinzon Diaz to a minor league contract and invited him to spring training. |
| Dec 29, 2011 | Signed as free agent | Victor Garate | — | Milwaukee Brewers | Milwaukee Brewers signed free agent LHP Victor Garate to a minor league contract. |
| Dec 28, 2011 | Signed as free agent | Mark DeRosa | — | Washington Nationals | Washington Nationals signed free agent LF Mark DeRosa. |
| Dec 28, 2011 | Trade | Miles Head | Boston Red Sox | Athletics | Oakland Athletics traded RHP Andrew Bailey and RF Ryan Sweeney to Boston Red Sox for RF Josh Reddick, 1B Miles Head and RHP Raul Alcantara. |
| Dec 28, 2011 | Signed as free agent | Jon Link | — | Baltimore Orioles | Baltimore Orioles signed free agent RHP Jon Link to a minor league contract and invited him to spring training. |
| Dec 28, 2011 | Signed as free agent | Eric Hacker | — | San Francisco Giants | San Francisco Giants signed free agent RHP Eric Hacker to a minor league contract. |
| Dec 28, 2011 | Signed as free agent | Ricardo Pinto | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Ricardo Pinto to a minor league contract. |
| Dec 27, 2011 | Signed as free agent | Ryan Langerhans | — | Los Angeles Angels | Los Angeles Angels signed free agent LF Ryan Langerhans to a minor league contract and invited him to spring training. |
| Dec 26, 2011 | Signed as free agent | Manny Corpas | — | Chicago Cubs | Chicago Cubs signed free agent Manny Corpas. |
| Dec 26, 2011 | Signed as free agent | Andy Sonnanstine | — | Chicago Cubs | Chicago Cubs signed free agent Andy Sonnanstine. |
| Dec 26, 2011 | Signed as free agent | Josh Fields | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent 3B Josh Fields to a minor league contract and invited him to spring training. |
| Dec 26, 2011 | Signed as free agent | Abiatal Avelino | — | New York Yankees | New York Yankees signed free agent SS Abiatal Avelino to a minor league contract. |
| Dec 24, 2011 | Signed as free agent | Jimmy Swift | — | Los Angeles Angels | Los Angeles Angels signed free agent 3B Jimmy Swift to a minor league contract. |
| Dec 23, 2011 | Signed as free agent | Carlos Beltrán | — | St. Louis Cardinals | St. Louis Cardinals signed free agent RF Carlos Beltran. |
| Dec 23, 2011 | Trade | Sean Marshall | Chicago Cubs | Cincinnati Reds | Chicago Cubs Traded LHP Sean Marshall to Cincinnati Reds; Cincinnati Reds Traded LHP Travis Wood and CF Dave Sappelt to Chicago Cubs and Dayton Dragons Traded 2B Ronald Torreyes to Peoria Chiefs. |
| Dec 23, 2011 | Trade | Gio Gonzalez | Athletics | Washington Nationals | Oakland Athletics traded LHP Gio Gonzalez and RHP Robert Gilliam to Washington Nationals for RHP A.J. Cole, RHP Brad Peacock, C Derek Norris and LHP Tommy Milone. |
| Dec 23, 2011 | Signed | Greg Picart | — | Pittsburgh Pirates | Pittsburgh Pirates signed SS Greg Picart. |
| Dec 23, 2011 | Signed as free agent | Luis Nunez | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent SS Luis Nunez to a minor league contract. |
| Dec 23, 2011 | Signed as free agent | Jason Jaramillo | — | Chicago Cubs | Chicago Cubs signed free agent C Jason Jaramillo to a minor league contract and invited him to spring training. |
| Dec 23, 2011 | Signed as free agent | Brad Davis | — | San Diego Padres | San Diego Padres signed free agent C Brad Davis to a minor league contract and invited him to spring training. |
| Dec 23, 2011 | Signed as free agent | Sandy Garces | — | Kansas City Royals | Kansas City Royals signed free agent LHP Sandy Garces to a minor league contract. |
| Dec 22, 2011 | Signed as free agent | Rob Johnson | — | New York Mets | New York Mets signed free agent C Rob Johnson to a minor league contract and invited him to spring training. |
| Dec 22, 2011 | Signed as free agent | Jason Marquis | — | Minnesota Twins | Minnesota Twins signed free agent Jason Marquis. |
| Dec 22, 2011 | Signed as free agent | Brian Esposito | — | Cincinnati Reds | Cincinnati Reds signed free agent C Brian Esposito to a minor league contract and invited him to spring training. |
| Dec 22, 2011 | Signed as free agent | Cole Garner | — | New York Yankees | New York Yankees signed free agent LF Cole Garner to a minor league contract and invited him to spring training. |
| Dec 22, 2011 | Signed as free agent | Mike Jacobs | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent 1B Mike Jacobs to a minor league contract. |
| Dec 22, 2011 | Signed as free agent | Merkin Valdez | — | Athletics | Oakland Athletics signed free agent RHP Merkin Valdez to a minor league contract and invited him to spring training. |
| Dec 22, 2011 | Signed as free agent | Michael Griffin | — | Cincinnati Reds | Cincinnati Reds signed free agent 3B Michael Griffin to a minor league contract. |
| Dec 22, 2011 | Signed as free agent | Brian Peacock | — | Cincinnati Reds | Cincinnati Reds signed free agent C Brian Peacock to a minor league contract. |
| Dec 22, 2011 | Signed as free agent | Shawn Bowman | — | Miami Marlins | Miami Marlins signed free agent 3B Shawn Bowman to a minor league contract. |
| Dec 22, 2011 | Signed as free agent | Mike Cervenak | — | Miami Marlins | Miami Marlins signed free agent 3B Mike Cervenak to a minor league contract. |
| Dec 22, 2011 | Signed as free agent | Matt Tolbert | — | Chicago Cubs | Chicago Cubs signed free agent 2B Matt Tolbert to a minor league contract and invited him to spring training. |
| Dec 22, 2011 | Signed as free agent | Wes Hodges | — | San Francisco Giants | San Francisco Giants signed free agent 1B Wes Hodges to a minor league contract. |
| Dec 22, 2011 | Signed as free agent | Adonis Paula | — | Chicago Cubs | Chicago Cubs signed free agent IF Adonis Paula to a minor league contract. |
| Dec 22, 2011 | Signed as free agent | Jeffry Cerdas | — | St. Louis Cardinals | St. Louis Cardinals signed free agent SS Jeffry Cerdas to a minor league contract. |
| Dec 21, 2011 | Signed as free agent | Andy LaRoche | — | Cleveland Guardians | Cleveland Indians signed free agent 3B Andy LaRoche to a minor league contract and invited him to spring training. |
| Dec 21, 2011 | Signed as free agent | César Izturis | — | Milwaukee Brewers | Milwaukee Brewers signed free agent SS Cesar Izturis to a minor league contract and invited him to spring training. |
| Dec 21, 2011 | Signed as free agent | Juan Pablo Pérez | — | Milwaukee Brewers | Milwaukee Brewers signed free agent LHP Juan Perez to a minor league contract and invited him to spring training. |
| Dec 21, 2011 | Signed as free agent | Anderson Hernandez | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent 2B Anderson Hernandez to a minor league contract and invited him to spring training. |
| Dec 21, 2011 | Trade | Luis Martinez | San Diego Padres | Texas Rangers | San Diego Padres Traded C Luis Martinez to Texas Rangers and Myrtle Beach Pelicans Traded RHP Ryan Kelly to San Antonio Missions. |
| Dec 21, 2011 | Signed as free agent | Hector Luna | — | Philadelphia Phillies | Philadelphia Phillies signed free agent 3B Hector Luna to a minor league contract and invited him to spring training. |
| Dec 21, 2011 | Signed as free agent | Luis Montanez | — | Philadelphia Phillies | Philadelphia Phillies signed free agent LF Luis Montanez to a minor league contract and invited him to spring training. |
| Dec 21, 2011 | Signed as free agent | Jose Mijares | — | Kansas City Royals | Kansas City Royals signed free agent Jose Mijares. |
| Dec 21, 2011 | Signed as free agent | Jeremy Hermida | — | San Diego Padres | San Diego Padres signed free agent RF Jeremy Hermida to a minor league contract and invited him to spring training. |
| Dec 21, 2011 | Signed as free agent | Munenori Kawasaki | — | Seattle Mariners | Seattle Mariners signed free agent SS Munenori Kawasaki to a minor league contract and invited him to spring training. |
| Dec 21, 2011 | Signed as free agent | Stephen Marek | — | Toronto Blue Jays | Toronto Blue Jays signed free agent RHP Stephen Marek to a minor league contract. |
| Dec 21, 2011 | Signed as free agent | Dan Cortes | — | Washington Nationals | Washington Nationals signed free agent Dan Cortes. |
| Dec 21, 2011 | Signed as free agent | Jose Gonzalez | — | Colorado Rockies | Colorado Rockies signed free agent C Jose Gonzalez to a minor league contract. |
| Dec 21, 2011 | Signed as free agent | Cedrick Bowers | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent LHP Cedrick Bowers to a minor league contract. |
| Dec 21, 2011 | Signed as free agent | Maikol Gonzalez | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent 2B Maikol Gonzalez to a minor league contract. |
| Dec 20, 2011 | Signed as free agent | Waldis Joaquin | — | Washington Nationals | Washington Nationals signed free agent RHP Waldis Joaquin to a minor league contract and invited him to spring training. |
| Dec 20, 2011 | Signed as free agent | Jarrett Hoffpauir | — | Washington Nationals | Washington Nationals signed free agent 3B Jarrett Hoffpauir to a minor league contract and invited him to spring training. |
| Dec 20, 2011 | Signed as free agent | Chad Tracy | — | Washington Nationals | Washington Nationals signed free agent 3B Chad Tracy to a minor league contract and invited him to spring training. |
| Dec 20, 2011 | Signed as free agent | Xavier Paul | — | Washington Nationals | Washington Nationals signed free agent LF Xavier Paul to a minor league contract and invited him to spring training. |
| Dec 20, 2011 | Signed as free agent | Jeff Clement | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent 1B Jeff Clement to a minor league contract and invited him to spring training. |
| Dec 20, 2011 | Signed as free agent | Ryota Igarashi | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent Ryota Igarashi. |
| Dec 20, 2011 | Signed as free agent | Jason Kubel | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent Jason Kubel. |
| Dec 20, 2011 | Signed as free agent | Endy Chavez | — | Baltimore Orioles | Baltimore Orioles signed free agent LF Endy Chavez. |
| Dec 20, 2011 | Signed as free agent | Yuniesky Betancourt | — | Kansas City Royals | Kansas City Royals signed free agent 2B Yuniesky Betancourt. |
| Dec 20, 2011 | Signed as free agent | Michael Cuddyer | — | Colorado Rockies | Colorado Rockies signed free agent RF Michael Cuddyer. |
| Dec 20, 2011 | Signed as free agent | Eugenio Velez | — | St. Louis Cardinals | St. Louis Cardinals signed free agent 2B Eugenio Velez to a minor league contract and invited him to spring training. |
| Dec 20, 2011 | Signed as free agent | Fabio Castro | — | Athletics | Oakland Athletics signed free agent LHP Fabio Castro to a minor league contract and invited him to spring training. |
| Dec 20, 2011 | Signed as free agent | Emerson Landoni | — | Atlanta Braves | Atlanta Braves signed free agent 2B Emerson Landoni to a minor league contract. |
| Dec 20, 2011 | Signed as free agent | German Duran | — | Miami Marlins | Miami Marlins signed free agent 2B German Duran to a minor league contract. |
| Dec 20, 2011 | Signed as free agent | Jon Edwards | — | Texas Rangers | Texas Rangers signed free agent RHP Jon Edwards to a minor league contract. |
| Dec 20, 2011 | Signed as free agent | Rolando Segovia | — | Toronto Blue Jays | Toronto Blue Jays signed free agent SS Rolando Segovia to a minor league contract. |
| Dec 19, 2011 | Signed as free agent | Wil Nieves | — | Colorado Rockies | Colorado Rockies signed free agent C Wil Nieves to a minor league contract and invited him to spring training. |
| Dec 19, 2011 | Signed as free agent | Frank Francisco | — | New York Mets | New York Mets signed free agent RHP Frank Francisco. |
| Dec 19, 2011 | Signed as free agent | Jimmy Rollins | — | Philadelphia Phillies | Philadelphia Phillies signed free agent Jimmy Rollins. |
| Dec 19, 2011 | Signed as free agent | Mike Cameron | — | Washington Nationals | Washington Nationals signed free agent Mike Cameron. |
| Dec 19, 2011 | Signed as free agent | Brendan Harris | — | Colorado Rockies | Colorado Rockies signed free agent 3B Brendan Harris to a minor league contract and invited him to spring training. |
| Dec 19, 2011 | Signed as free agent | Mark Reed | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent C Mark Reed to a minor league contract. |
| Dec 19, 2011 | Signed as free agent | Raul Rivero | — | Baltimore Orioles | Baltimore Orioles signed free agent RHP Raul Rivero to a minor league contract. |
| Dec 19, 2011 | Signed as free agent | John Grabow | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent LHP John Grabow to a minor league contract and invited him to spring training. |
| Dec 19, 2011 | Signed as free agent | Sergio Pedroza | — | Miami Marlins | Miami Marlins signed free agent RF Sergio Pedroza to a minor league contract. |
| Dec 18, 2011 | Signed as free agent | Dewayne Wise | — | New York Yankees | New York Yankees signed free agent CF Dewayne Wise to a minor league contract and invited him to spring training. |
| Dec 18, 2011 | Signed as free agent | Kyle Winters | — | Washington Nationals | Washington Nationals signed free agent RHP Kyle Winters to a minor league contract. |
| Dec 17, 2011 | Trade | Yonder Alonso | Cincinnati Reds | San Diego Padres | Cincinnati Reds traded Brad Boxberger, RHP Edinson Volquez, C Yasmani Grandal and 1B Yonder Alonso to San Diego Padres for RHP Mat Latos. |
| Dec 16, 2011 | Signed as free agent | Jose Lopez | — | Cleveland Guardians | Cleveland Indians signed free agent 2B Jose Lopez to a minor league contract and invited him to spring training. |
| Dec 16, 2011 | Signed as free agent | Felix Pie | — | Cleveland Guardians | Cleveland Indians signed free agent LF Felix Pie to a minor league contract and invited him to spring training. |
| Dec 16, 2011 | Trade | Aaron Cunningham | San Diego Padres | Cleveland Guardians | San Diego Padres Traded RF Aaron Cunningham to Cleveland Indians and Columbus Clippers Traded RHP Cory Burns to Tucson Padres. |
| Dec 16, 2011 | Signed as free agent | Mike Baxter | — | New York Mets | New York Mets signed free agent LF Mike Baxter to a minor league contract and invited him to spring training. |
| Dec 16, 2011 | Signed as free agent | Andrés Blanco | — | Washington Nationals | Washington Nationals signed free agent SS Andres Blanco to a minor league contract and invited him to spring training. |
| Dec 16, 2011 | Signed as free agent | Lee Cruz | — | Baltimore Orioles | Baltimore Orioles signed free agent LF Lee Cruz to a minor league contract. |
| Dec 16, 2011 | Signed as free agent | Antoan Richardson | — | Baltimore Orioles | Baltimore Orioles signed free agent CF Antoan Richardson to a minor league contract. |
| Dec 16, 2011 | Signed as free agent | R.J. Swindle | — | St. Louis Cardinals | St. Louis Cardinals signed free agent LHP R.J. Swindle to a minor league contract and invited him to spring training. |
| Dec 16, 2011 | Signed as free agent | Eric Hurley | — | Los Angeles Angels | Los Angeles Angels signed free agent RHP Eric Hurley to a minor league contract and invited him to spring training. |
| Dec 16, 2011 | Signed as free agent | P.J. Phillips | — | Cincinnati Reds | Cincinnati Reds signed free agent 2B P.J. Phillips to a minor league contract. |
| Dec 16, 2011 | Signed as free agent | Eric Patterson | — | Detroit Tigers | Detroit Tigers signed free agent CF Eric Patterson to a minor league contract and invited him to spring training. |
| Dec 16, 2011 | Signed as free agent | Adam Miller | — | New York Yankees | New York Yankees signed free agent RHP Adam Miller to a minor league contract and invited him to spring training. |
| Dec 16, 2011 | Signed as free agent | Jeff Stevens | — | New York Mets | New York Mets signed free agent RHP Jeff Stevens to a minor league contract. |
| Dec 16, 2011 | Signed as free agent | Carlos R Rojas | — | Baltimore Orioles | Baltimore Orioles signed free agent 3B Carlos R Rojas to a minor league contract. |
| Dec 16, 2011 | Signed as free agent | Curt Smith | — | Miami Marlins | Miami Marlins signed free agent 1B Curt Smith to a minor league contract. |
| Dec 16, 2011 | Signed as free agent | Jose Mendoza | — | Los Angeles Angels | Los Angeles Angels signed free agent RHP Jose Mendoza to a minor league contract. |
| Dec 16, 2011 | Signed as free agent | Gabriel A. Ynfante | — | Minnesota Twins | Minnesota Twins signed free agent 2B Gabriel A. Ynfante to a minor league contract. |
| Dec 16, 2011 | Signed as free agent | Angel Jimenez | — | Seattle Mariners | Seattle Mariners signed free agent SS Angel Jimenez to a minor league contract. |
| Dec 16, 2011 | Signed as free agent | Luis Martinez | — | Chicago White Sox | Chicago White Sox signed free agent RHP Luis Martinez to a minor league contract. |
| Dec 15, 2011 | Signed as free agent | Chuck James | — | New York Mets | New York Mets signed free agent LHP Chuck James to a minor league contract and invited him to spring training. |
| Dec 15, 2011 | Signed as free agent | Josh Willingham | — | Minnesota Twins | Minnesota Twins signed free agent Josh Willingham. |
| Dec 15, 2011 | Signed as free agent | Dontrelle Willis | — | Philadelphia Phillies | Philadelphia Phillies signed free agent LHP Dontrelle Willis. |
| Dec 15, 2011 | Signed as free agent | Chris Robinson | — | Texas Rangers | Texas Rangers signed free agent C Chris Robinson to a minor league contract and invited him to spring training. |
| Dec 15, 2011 | Signed as free agent | J.C. Romero | — | St. Louis Cardinals | St. Louis Cardinals signed free agent LHP J.C. Romero. |
| Dec 15, 2011 | Signed as free agent | Doug Salinas | — | Texas Rangers | Texas Rangers signed free agent RHP Doug Salinas to a minor league contract. |
| Dec 15, 2011 | Signed as free agent | Eli Whiteside | — | San Francisco Giants | San Francisco Giants signed free agent Eli Whiteside. |
| Dec 15, 2011 | Signed as free agent | Jeff Fulchino | — | Washington Nationals | Washington Nationals signed free agent RHP Jeff Fulchino to a minor league contract and invited him to spring training. |
| Dec 15, 2011 | Signed as free agent | Argenis Reyes | — | Cleveland Guardians | Cleveland Indians signed free agent 2B Argenis Reyes to a minor league contract. |
| Dec 15, 2011 | Signed as free agent | Eun Chul Choi | — | Baltimore Orioles | Baltimore Orioles signed free agent RHP Eunchul Choi to a minor league contract. |
| Dec 15, 2011 | Signed as free agent | Joel Barroso | — | Tampa Bay Rays | Tampa Bay Rays signed free agent SS Joel Barroso to a minor league contract. |
| Dec 14, 2011 | Signed as free agent | Darren Ford | — | Seattle Mariners | Seattle Mariners signed free agent CF Darren Ford to a minor league contract and invited him to spring training. |
| Dec 14, 2011 | Signed as free agent | Josh Kinney | — | Seattle Mariners | Seattle Mariners signed free agent RHP Josh Kinney to a minor league contract and invited him to spring training. |
| Dec 14, 2011 | Signed as free agent | Jeff Marquez | — | Seattle Mariners | Seattle Mariners signed free agent RHP Jeff Marquez to a minor league contract and invited him to spring training. |
| Dec 14, 2011 | Signed as free agent | Scott Patterson | — | Seattle Mariners | Seattle Mariners signed free agent RHP Scott Patterson to a minor league contract and invited him to spring training. |
| Dec 14, 2011 | Signed as free agent | Guillermo Quiroz | — | Seattle Mariners | Seattle Mariners signed free agent C Guillermo Quiroz to a minor league contract and invited him to spring training. |
| Dec 14, 2011 | Signed as free agent | Philippe Valiquette | — | Seattle Mariners | Seattle Mariners signed free agent LHP Philippe Valiquette to a minor league contract and invited him to spring training. |
| Dec 14, 2011 | Signed as free agent | Aramis Ramirez | — | Milwaukee Brewers | Milwaukee Brewers signed free agent 3B Aramis Ramirez. |
| Dec 14, 2011 | Trade | Kyle Weiland | Boston Red Sox | Houston Astros | Houston Astros traded RHP Mark Melancon to Boston Red Sox for SS Jed Lowrie and RHP Kyle Weiland. |
| Dec 14, 2011 | Signed as free agent | Takashi Saito | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Takashi Saito. |
| Dec 14, 2011 | Signed as free agent | Rafael Furcal | — | St. Louis Cardinals | St. Louis Cardinals signed free agent SS Rafael Furcal. |
| Dec 14, 2011 | Signed as free agent | Tsuyoshi Wada | — | Baltimore Orioles | Baltimore Orioles signed free agent LHP Tsuyoshi Wada. |
| Dec 14, 2011 | Signed as free agent | Chris Gimenez | — | Seattle Mariners | Seattle Mariners signed free agent C Chris Gimenez. |
| Dec 14, 2011 | Signed as free agent | Nick Punto | — | Boston Red Sox | Boston Red Sox signed free agent Nick Punto. |
| Dec 14, 2011 | Signed as free agent | Jon Rauch | — | New York Mets | New York Mets signed free agent RHP Jon Rauch. |
| Dec 14, 2011 | Signed as free agent | LaTroy Hawkins | — | Los Angeles Angels | Los Angeles Angels signed free agent RHP LaTroy Hawkins. |
| Dec 14, 2011 | Released | Nick Stavinoha | — | Houston Astros | Houston Astros released RF Nick Stavinoha. |
| Dec 14, 2011 | Signed as free agent | Kyle Fernandes | — | Texas Rangers | Texas Rangers signed free agent LHP Kyle Fernandes to a minor league contract. |
| Dec 14, 2011 | Signed as free agent | Derek Hankins | — | Texas Rangers | Texas Rangers signed free agent RHP Derek Hankins to a minor league contract. |
| Dec 14, 2011 | Signed as free agent | Kris Johnson | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent LHP Kris Johnson to a minor league contract. |
| Dec 14, 2011 | Signed as free agent | Ryan Edell | — | Baltimore Orioles | Baltimore Orioles signed free agent LHP Ryan Edell to a minor league contract. |
| Dec 14, 2011 | Signed as free agent | Devon Lowery | — | Kansas City Royals | Kansas City Royals signed free agent RHP Devon Lowery to a minor league contract. |
| Dec 14, 2011 | Signed as free agent | Wilmer Dominguez | — | Tampa Bay Rays | Tampa Bay Rays signed free agent C Wilmer Dominguez to a minor league contract. |
| Dec 13, 2011 | Trade | Casey McGehee | Milwaukee Brewers | Pittsburgh Pirates | Milwaukee Brewers traded 1B Casey McGehee to Pittsburgh Pirates for RHP Jose Veras. |
| Dec 13, 2011 | Signed as free agent | Garrett Olson | — | New York Mets | New York Mets signed free agent LHP Garrett Olson to a minor league contract and invited him to spring training. |
| Dec 13, 2011 | Signed as free agent | Lucas May | — | New York Mets | New York Mets signed free agent C Lucas May to a minor league contract and invited him to spring training. |
| Dec 13, 2011 | Signed as free agent | Juan Gutierrez | — | Kansas City Royals | Kansas City Royals signed free agent RHP Juan Gutierrez to a minor league contract. |
| Dec 13, 2011 | Signed as free agent | Max Ramirez | — | Kansas City Royals | Kansas City Royals signed free agent C Max Ramirez to a minor league contract and invited him to spring training. |
| Dec 13, 2011 | Signed as free agent | Greg Golson | — | Kansas City Royals | Kansas City Royals signed free agent Greg Golson. |
| Dec 13, 2011 | Signed as free agent | Jonathan Albaladejo | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent Jonathan Albaladejo. |
| Dec 13, 2011 | Signed as free agent | Kelly Shoppach | — | Boston Red Sox | Boston Red Sox signed free agent Kelly Shoppach. |
| Dec 13, 2011 | Signed as free agent | Cory Sullivan | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent LF Cory Sullivan to a minor league contract and invited him to spring training. |
| Dec 13, 2011 | Signed as free agent | Josh Bard | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent C Josh Bard to a minor league contract and invited him to spring training. |
| Dec 13, 2011 | Signed as free agent | Angel Guzman | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent RHP Angel Guzman to a minor league contract and invited him to spring training. |
| Dec 13, 2011 | Signed as free agent | Fernando Nieve | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent RHP Fernando Nieve to a minor league contract and invited him to spring training. |
| Dec 13, 2011 | Signed as free agent | Jose Ascanio | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent RHP Jose Ascanio to a minor league contract and invited him to spring training. |
| Dec 13, 2011 | Signed as free agent | Ryan Tucker | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent RHP Ryan Tucker to a minor league contract and invited him to spring training. |
| Dec 13, 2011 | Signed as free agent | Matt Chico | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent LHP Matt Chico to a minor league contract and invited him to spring training. |
| Dec 13, 2011 | Signed as free agent | Jeff Baisley | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent 3B Jeff Baisley to a minor league contract and invited him to spring training. |
| Dec 13, 2011 | Signed as free agent | Alberto Castillo | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent LHP Alberto Castillo to a minor league contract and invited him to spring training. |
| Dec 13, 2011 | Signed as free agent | Mike Ekstrom | — | Colorado Rockies | Colorado Rockies signed free agent RHP Mike Ekstrom to a minor league contract and invited him to spring training. |
| Dec 13, 2011 | Signed as free agent | Wilkin Castillo | — | Colorado Rockies | Colorado Rockies signed free agent C Wilkin Castillo to a minor league contract and invited him to spring training. |
| Dec 13, 2011 | Signed as free agent | Matt Daley | — | New York Yankees | New York Yankees signed free agent RHP Matt Daley to a minor league contract and invited him to spring training. |
| Dec 13, 2011 | Signed as free agent | Gustavo Molina | — | New York Yankees | New York Yankees signed free agent C Gustavo Molina to a minor league contract and invited him to spring training. |
| Dec 13, 2011 | Signed as free agent | Carlos Larez | — | Baltimore Orioles | Baltimore Orioles signed free agent OF Carlos Larez to a minor league contract. |
| Dec 13, 2011 | Signed as free agent | Zach Simons | — | Colorado Rockies | Colorado Rockies signed free agent RHP Zach Simons to a minor league contract. |
| Dec 13, 2011 | Signed as free agent | Moises Hernandez | — | Seattle Mariners | Seattle Mariners signed free agent RHP Moises Hernandez to a minor league contract. |
| Dec 13, 2011 | Signed as free agent | Jose Jimenez | — | Seattle Mariners | Seattle Mariners signed free agent LHP Jose Jimenez to a minor league contract. |
| Dec 13, 2011 | Signed as free agent | Matt Torra | — | Tampa Bay Rays | Tampa Bay Rays signed free agent RHP Matt Torra to a minor league contract and invited him to spring training. |
| Dec 13, 2011 | Signed as free agent | Rich Hill | — | Boston Red Sox | Boston Red Sox signed free agent LHP Rich Hill to a minor league contract and invited him to spring training. |
| Dec 13, 2011 | Signed as free agent | René Rivera | — | Minnesota Twins | Minnesota Twins signed free agent C Rene Rivera to a minor league contract and invited him to spring training. |
| Dec 13, 2011 | Signed as free agent | Rob Delaney | — | Miami Marlins | Miami Marlins signed free agent RHP Rob Delaney to a minor league contract and invited him to spring training. |
| Dec 13, 2011 | Signed as free agent | Chad Gaudin | — | Miami Marlins | Miami Marlins signed free agent RHP Chad Gaudin to a minor league contract and invited him to spring training. |
| Dec 13, 2011 | Signed as free agent | Edgar Gonzalez | — | Chicago Cubs | Chicago Cubs signed free agent 2B Edgar Gonzalez to a minor league contract and invited him to spring training. |
| Dec 13, 2011 | Signed as free agent | Fernan Zuniga | — | Atlanta Braves | Atlanta Braves signed free agent C Fernan Zuniga to a minor league contract. |
| Dec 12, 2011 | Signed as free agent | Álex González | — | Milwaukee Brewers | Milwaukee Brewers signed free agent Alex Gonzalez. |
| Dec 12, 2011 | Signed as free agent | Travis Ishikawa | — | Milwaukee Brewers | Milwaukee Brewers signed free agent 1B Travis Ishikawa to a minor league contract and invited him to spring training. |
| Dec 12, 2011 | Trade | Ben Francisco | Philadelphia Phillies | Toronto Blue Jays | New Hampshire Fisher Cats Traded LHP Frank Gailey to Reading Phillies and Philadelphia Phillies Traded LF Ben Francisco to Toronto Blue Jays. |
| Dec 12, 2011 | Trade | Burke Badenhop | Miami Marlins | Tampa Bay Rays | Charlotte Stone Crabs Traded C Jake Jefferies to Jupiter Hammerheads and Miami Marlins Traded RHP Burke Badenhop to Tampa Bay Rays. |
| Dec 12, 2011 | Signed as free agent | Kanekoa Texeira | — | Cincinnati Reds | Cincinnati Reds signed free agent RHP Kanekoa Texeira to a minor league contract and invited him to spring training. |
| Dec 12, 2011 | Signed as free agent | Chris Gutierrez | — | Miami Marlins | Miami Marlins signed free agent SS Chris Gutierrez to a minor league contract. |
| Dec 12, 2011 | Signed as free agent | Aaron Rowand | — | Miami Marlins | Miami Marlins signed free agent CF Aaron Rowand to a minor league contract and invited him to spring training. |
| Dec 12, 2011 | Signed as free agent | P.J. Walters | — | Minnesota Twins | Minnesota Twins signed free agent RHP P.J. Walters to a minor league contract and invited him to spring training. |
| Dec 12, 2011 | Signed as free agent | Corey Smith | — | Chicago White Sox | Chicago White Sox signed free agent 1B Corey Smith to a minor league contract. |
| Dec 12, 2011 | Signed as free agent | Joe Mather | — | Chicago Cubs | Chicago Cubs signed free agent RF Joe Mather to a minor league contract and invited him to spring training. |
| Dec 12, 2011 | Signed as free agent | Derrick Loop | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent LHP Derrick Loop to a minor league contract. |
| Dec 12, 2011 | Signed as free agent | Nick Green | — | Miami Marlins | Miami Marlins signed free agent SS Nick Green to a minor league contract and invited him to spring training. |
| Dec 11, 2011 | Signed as free agent | Aaron Thompson | — | Minnesota Twins | Minnesota Twins signed free agent LHP Aaron Thompson to a minor league contract and invited him to spring training. |
| Dec 11, 2011 | Signed as free agent | Jason Michaels | — | Washington Nationals | Washington Nationals signed free agent LF Jason Michaels to a minor league contract and invited him to spring training. |
| Dec 11, 2011 | Signed as free agent | Joaquin Arias | — | San Francisco Giants | San Francisco Giants signed free agent 2B Joaquin Arias to a minor league contract and invited him to spring training. |
| Dec 10, 2011 | Signed as free agent | Albert Pujols | — | Los Angeles Angels | Los Angeles Angels signed free agent 1B Albert Pujols. |
| Dec 10, 2011 | Signed as free agent | C.J. Wilson | — | Los Angeles Angels | Los Angeles Angels signed free agent LHP C.J. Wilson. |
| Dec 9, 2011 | Signed as free agent | Mark Buehrle | — | Miami Marlins | Miami Marlins signed free agent Mark Buehrle. |
| Dec 9, 2011 | Signed as free agent | Freddy Garcia | — | New York Yankees | New York Yankees signed free agent RHP Freddy Garcia. |
| Dec 9, 2011 | Signed as free agent | Octavio Dotel | — | Detroit Tigers | Detroit Tigers signed free agent RHP Octavio Dotel. |
| Dec 9, 2011 | Signed as free agent | Dave Bush | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Dave Bush to a minor league contract and invited him to spring training. |
| Dec 9, 2011 | Signed as free agent | Steven Lerud | — | Philadelphia Phillies | Philadelphia Phillies signed free agent C Steven Lerud to a minor league contract and invited him to spring training. |
| Dec 9, 2011 | Signed as free agent | David Purcey | — | Philadelphia Phillies | Philadelphia Phillies signed free agent LHP David Purcey to a minor league contract and invited him to spring training. |
| Dec 9, 2011 | Signed as free agent | Lyle Overbay | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent Lyle Overbay. |
| Dec 9, 2011 | Signed as free agent | Alberto Gonzalez | — | Texas Rangers | Texas Rangers signed free agent 2B Alberto Gonzalez to a minor league contract and invited him to spring training. |
| Dec 9, 2011 | Trade | Ryan Perry | Detroit Tigers | Washington Nationals | Washington Nationals traded RHP Collin Balester to Detroit Tigers for RHP Ryan Perry. |
| Dec 9, 2011 | Trade | Ryan Cook | Arizona Diamondbacks | Athletics | Oakland Athletics traded cash, LHP Craig Breslow and RHP Trevor Cahill to Arizona Diamondbacks for RF Collin Cowgill, RHP Jarrod Parker and RHP Ryan Cook. |
| Dec 9, 2011 | Signed as free agent | Andy González | — | Milwaukee Brewers | Milwaukee Brewers signed free agent SS Andy Gonzalez to a minor league contract. |
| Dec 9, 2011 | Signed as free agent | Shane Lindsay | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent Shane Lindsay. |
| Dec 9, 2011 | Signed as free agent | Michael Spidale | — | Philadelphia Phillies | Philadelphia Phillies signed free agent LF Michael Spidale to a minor league contract. |
| Dec 9, 2011 | Signed as free agent | Rich Thompson | — | Philadelphia Phillies | Philadelphia Phillies signed free agent CF Rich Thompson to a minor league contract. |
| Dec 9, 2011 | Signed as free agent | Luis Chirinos | — | Washington Nationals | Washington Nationals signed free agent RHP Luis Chirinos to a minor league contract. |
| Dec 9, 2011 | Signed as free agent | Marcel Prado | — | Washington Nationals | Washington Nationals signed free agent Marcel Prado. |
| Dec 9, 2011 | Signed as free agent | Manny Mayorson | — | Washington Nationals | Washington Nationals signed free agent 2B Manny Mayorson. |
| Dec 9, 2011 | Signed as free agent | Tim Pahuta | — | Washington Nationals | Washington Nationals signed free agent 3B Tim Pahuta to a minor league contract. |
| Dec 9, 2011 | Signed as free agent | Shane Lindsay | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent RHP Shane Lindsay to a minor league contract and invited him to spring training. |
| Dec 9, 2011 | Signed as free agent | Miguel Abreu | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RF Miguel Abreu to a minor league contract. |
| Dec 9, 2011 | Signed as free agent | Angel Duno | — | Athletics | Oakland Athletics signed free agent RHP Angel Duno to a minor league contract. |
| Dec 8, 2011 | Trade | Yamaico Navarro | Kansas City Royals | Pittsburgh Pirates | Kansas City Royals traded 3B Yamaico Navarro to Pittsburgh Pirates for RHP Brooks Pounders and 3B Diego Goris. |
| Dec 8, 2011 | Released | Ross Ohlendorf | — | Pittsburgh Pirates | Pittsburgh Pirates released RHP Ross Ohlendorf. |
| Dec 8, 2011 | Trade | Dana Eveland | Los Angeles Dodgers | Baltimore Orioles | Los Angeles Dodgers Traded LHP Dana Eveland to Baltimore Orioles; Norfolk Tides Traded LF Tyler Henson to Albuquerque Isotopes and Delmarva Shorebirds Traded LHP Jarret Martin to Rancho Cucamonga Quakes. |
| Dec 8, 2011 | Signed as free agent | Aaron Harang | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent RHP Aaron Harang. |
| Dec 8, 2011 | Trade | Marwin Gonzalez | Boston Red Sox | Houston Astros | Boston Red Sox Traded SS Marwin Gonzalez to Houston Astros and Oklahoma City RedHawks Traded RHP Marco Antonio Duarte to Pawtucket Red Sox. |
| Dec 8, 2011 | Trade | Cesar Cabral | Kansas City Royals | New York Yankees | Kansas City Royals traded LHP Cesar Cabral to New York Yankees. |
| Dec 8, 2011 | Signed as free agent | Laynce Nix | — | Philadelphia Phillies | Philadelphia Phillies signed free agent LF Laynce Nix. |
| Dec 8, 2011 | Trade | Tyler Colvin | Chicago Cubs | Colorado Rockies | Chicago Cubs traded 2B DJ LeMahieu and RF Tyler Colvin to Colorado Rockies for RHP Casey Weathers and 3B Ian Stewart. |
| Dec 8, 2011 | Released | Greg Golson | — | New York Yankees | New York Yankees released CF Greg Golson. |
| Dec 8, 2011 | Signed as free agent | Jesus Lugo | — | New York Mets | New York Mets signed free agent RHP Jesus Lugo to a minor league contract. |
| Dec 8, 2011 | Signed as free agent | Richard Reina | — | New York Mets | New York Mets signed free agent Richard Reina. |
| Dec 8, 2011 | Signed as free agent | Yelson Calderon | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Yelson Calderon to a minor league contract. |
| Dec 7, 2011 | Signed as free agent | Matt Capps | — | Minnesota Twins | Minnesota Twins signed free agent RHP Matt Capps. |
| Dec 7, 2011 | Signed as free agent | Jose Morales | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent C Jose Morales to a minor league contract and invited him to spring training. |
| Dec 7, 2011 | Signed as free agent | José Reyes | — | Miami Marlins | Miami Marlins signed free agent Jose Reyes. |
| Dec 7, 2011 | Trade | Ramon E Ramirez | San Francisco Giants | New York Mets | San Francisco Giants traded RHP Ramon Ramirez and CF Andres Torres to New York Mets for CF Angel Pagan. |
| Dec 7, 2011 | Trade | Huston Street | Colorado Rockies | San Diego Padres | Colorado Rockies traded RHP Huston Street to San Diego Padres. |
| Dec 7, 2011 | Signed as free agent | Erik Bedard | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent LHP Erik Bedard. |
| Dec 7, 2011 | Signed as free agent | Nate McLouth | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent LF Nate McLouth. |
| Dec 7, 2011 | Signed | David Ortiz | — | Boston Red Sox | Boston Red Sox signed DH David Ortiz. |
| Dec 7, 2011 | Signed | Francisco Rodríguez | — | Milwaukee Brewers | Milwaukee Brewers signed RHP Francisco Rodriguez. |
| Dec 7, 2011 | Signed | Kelly Johnson | — | Toronto Blue Jays | Toronto Blue Jays signed 2B Kelly Johnson. |
| Dec 7, 2011 | Signed as free agent | Mike Rivera | — | Milwaukee Brewers | Milwaukee Brewers signed free agent C Mike Rivera to a minor league contract and invited him to spring training. |
| Dec 7, 2011 | Signed as free agent | Wilfredo Ledezma | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent LHP Wil Ledezma to a minor league contract and invited him to spring training. |
| Dec 7, 2011 | Signed as free agent | Jesse Carlson | — | Boston Red Sox | Boston Red Sox signed free agent LHP Jesse Carlson to a minor league contract and invited him to spring training. |
| Dec 7, 2011 | Signed as free agent | Kelvin Perez | — | New York Yankees | New York Yankees signed free agent RHP Kelvin Perez to a minor league contract. |
| Dec 7, 2011 | Signed as free agent | Clint Everts | — | Toronto Blue Jays | Toronto Blue Jays signed free agent RHP Clint Everts to a minor league contract. |
| Dec 7, 2011 | Signed as free agent | Carlos Martinez-Pumarino | — | Chicago Cubs | Chicago Cubs signed free agent RHP Carlos Martinez-Pumarino to a minor league contract. |
| Dec 6, 2011 | Trade | Kevin Slowey | Minnesota Twins | Colorado Rockies | Minnesota Twins traded RHP Kevin Slowey to Colorado Rockies. |
| Dec 6, 2011 | Trade | Nestor Molina | Toronto Blue Jays | Chicago White Sox | Toronto Blue Jays traded RHP Nestor Molina to Chicago White Sox for RHP Sergio Santos. |
| Dec 6, 2011 | Signed as free agent | Juan Miranda | — | Tampa Bay Rays | Tampa Bay Rays signed free agent 1B Juan Miranda to a minor league contract and invited him to spring training. |
| Dec 6, 2011 | Signed as free agent | Joe Martinez | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent Joe Martinez. |
| Dec 6, 2011 | Signed as free agent | Kelvyn Mena | — | Baltimore Orioles | Baltimore Orioles signed free agent C Kelvin Mena to a minor league contract. |
| Dec 6, 2011 | Signed as free agent | Dale Thayer | — | San Diego Padres | San Diego Padres signed free agent RHP Dale Thayer to a minor league contract and invited him to spring training. |
| Dec 6, 2011 | Signed as free agent | Greylor Conde | — | Toronto Blue Jays | Toronto Blue Jays signed free agent RHP Greylor Conde to a minor league contract. |
| Dec 6, 2011 | Signed as free agent | Willie Collazo | — | Toronto Blue Jays | Toronto Blue Jays signed free agent LHP Willie Collazo to a minor league contract. |
| Dec 6, 2011 | Signed as free agent | Sean Gallagher | — | Cincinnati Reds | Cincinnati Reds signed free agent RHP Sean Gallagher to a minor league contract and invited him to spring training. |
| Dec 5, 2011 | Signed as free agent | Heath Bell | — | Miami Marlins | Miami Marlins signed free agent Heath Bell. |
| Dec 5, 2011 | Signed as free agent | Jerry Hairston Jr. | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent SS Jerry Hairston. |
| Dec 5, 2011 | Signed as free agent | Jayson Nix | — | New York Yankees | New York Yankees signed free agent 3B Jayson Nix to a minor league contract and invited him to spring training. |
| Dec 5, 2011 | Signed as free agent | Jeremy Horst | — | Cincinnati Reds | Cincinnati Reds signed free agent Jeremy Horst. |
| Dec 5, 2011 | Signed as free agent | Ray Cabrera | — | Atlanta Braves | Atlanta Braves signed free agent RHP Ray Cabrera to a minor league contract. |
| Dec 4, 2011 | Signed as free agent | Brett Carroll | — | Washington Nationals | Washington Nationals signed free agent RF Brett Carroll to a minor league contract and invited him to spring training. |
| Dec 4, 2011 | Signed as free agent | Rafael Rodriguez | — | Atlanta Braves | Atlanta Braves signed free agent RHP Rafael Rodriguez to a minor league contract. |
| Dec 3, 2011 | Trade | Brad Mills | Toronto Blue Jays | Los Angeles Angels | Toronto Blue Jays traded LHP Brad Mills to Los Angeles Angels for C Jeff Mathis. |
| Dec 3, 2011 | Signed as free agent | Daniel Cordero | — | Atlanta Braves | Atlanta Braves signed free agent RHP Daniel Cordero to a minor league contract. |
| Dec 2, 2011 | Signed as free agent | Matt Pagnozzi | — | Cleveland Guardians | Cleveland Indians signed free agent C Matt Pagnozzi to a minor league contract and invited him to spring training. |
| Dec 2, 2011 | Signed as free agent | Diory Hernandez | — | Houston Astros | Houston Astros signed free agent SS Diory Hernandez to a minor league contract and invited him to spring training. |
| Dec 2, 2011 | Signed as free agent | Chris Capuano | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent LHP Chris Capuano. |
| Dec 2, 2011 | Signed as free agent | Yangervis Solarte | — | Texas Rangers | Texas Rangers signed free agent 2B Yangervis Solarte to a minor league contract and invited him to spring training. |
| Dec 2, 2011 | Signed as free agent | J.D. Martin | — | Miami Marlins | Miami Marlins signed free agent RHP J.D. Martin to a minor league contract and invited him to spring training. |
| Dec 2, 2011 | Signed as free agent | Roberto Caro | — | Chicago Cubs | Chicago Cubs signed free agent OF Roberto Caro to a minor league contract. |
| Dec 1, 2011 | Trade | Taylor Teagarden | Texas Rangers | Baltimore Orioles | Texas Rangers Traded C Taylor Teagarden to Baltimore Orioles and Delmarva Shorebirds Traded RHP Randy Henry to Myrtle Beach Pelicans. |
| Dec 1, 2011 | Signed as free agent | Cody Ransom | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent 3B Cody Ransom to a minor league contract and invited him to spring training. |
| Dec 1, 2011 | Signed as free agent | Michael O'Connor | — | New York Yankees | New York Yankees signed free agent LHP Michael O'Connor to a minor league contract and invited him to spring training. |
| Dec 1, 2011 | Signed as free agent | Tony Abreu | — | Kansas City Royals | Kansas City Royals signed free agent 2B Tony Abreu to a minor league contract and invited him to spring training. |
| Dec 1, 2011 | Signed as free agent | Ricardo Estevez | — | Chicago Cubs | Chicago Cubs signed free agent RHP Ricardo Estevez to a minor league contract. |
| Dec 1, 2011 | Signed as free agent | Miguel Díaz | — | Milwaukee Brewers | Milwaukee Brewers signed free agent RHP Miguel Diaz to a minor league contract. |
| Nov 30, 2011 | Signed as free agent | Scott Elarton | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Scott Elarton to a minor league contract and invited him to spring training. |
| Nov 30, 2011 | Signed as free agent | Kevin Frandsen | — | Philadelphia Phillies | Philadelphia Phillies signed free agent SS Kevin Frandsen to a minor league contract and invited him to spring training. |
| Nov 30, 2011 | Signed as free agent | Pat Misch | — | Philadelphia Phillies | Philadelphia Phillies signed free agent LHP Pat Misch to a minor league contract and invited him to spring training. |
| Nov 30, 2011 | Signed as free agent | Pete Orr | — | Philadelphia Phillies | Philadelphia Phillies signed free agent 2B Pete Orr to a minor league contract and invited him to spring training. |
| Nov 30, 2011 | Signed as free agent | Scott Podsednik | — | Philadelphia Phillies | Philadelphia Phillies signed free agent OF Scott Podsednik to a minor league contract and invited him to spring training. |
| Nov 30, 2011 | Signed as free agent | Brian Sanches | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Brian Sanches to a minor league contract and invited him to spring training. |
| Nov 30, 2011 | Signed as free agent | Raul Valdes | — | Philadelphia Phillies | Philadelphia Phillies signed free agent LHP Raul Valdes to a minor league contract and invited him to spring training. |
| Nov 30, 2011 | Signed as free agent | David DeJesus | — | Chicago Cubs | Chicago Cubs signed free agent CF David DeJesus. |
| Nov 30, 2011 | Signed as free agent | Nick Evans | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent 1B Nick Evans to a minor league contract and invited him to spring training. |
| Nov 30, 2011 | Signed as free agent | Ramon Santiago | — | Detroit Tigers | Detroit Tigers signed free agent 2B Ramon Santiago. |
| Nov 30, 2011 | Trade | Tyler Chatwood | Los Angeles Angels | Colorado Rockies | Colorado Rockies traded C Chris Iannetta to Los Angeles Angels for RHP Tyler Chatwood. |
| Nov 30, 2011 | Signed as free agent | Adam Kennedy | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent 2B Adam Kennedy. |
| Nov 30, 2011 | Signed as free agent | Ramon Hernandez | — | Colorado Rockies | Colorado Rockies signed free agent C Ramon Hernandez. |
| Nov 30, 2011 | Signed as free agent | Luis Hernandez | — | Texas Rangers | Texas Rangers signed free agent 2B Luis Hernandez to a minor league contract and invited him to spring training. |
| Nov 30, 2011 | Signed as free agent | Brian Baker | — | Milwaukee Brewers | Milwaukee Brewers signed free agent RHP Brian Baker to a minor league contract. |
| Nov 30, 2011 | Signed as free agent | Matt Palmer | — | San Diego Padres | San Diego Padres signed free agent RHP Matt Palmer to a minor league contract and invited him to spring training. |
| Nov 29, 2011 | Signed as free agent | Jonathan Broxton | — | Kansas City Royals | Kansas City Royals signed free agent Jonathan Broxton. |
| Nov 29, 2011 | Released | Scott Mathieson | — | Philadelphia Phillies | Philadelphia Phillies released RHP Scott Mathieson. |
| Nov 29, 2011 | Signed as free agent | Carlos Corporán | — | Houston Astros | Houston Astros signed free agent C Carlos Corporan to a minor league contract and invited him to spring training. |
| Nov 29, 2011 | Signed as free agent | Miguel Castro | — | Toronto Blue Jays | Toronto Blue Jays signed free agent RHP Miguel Castro to a minor league contract. |
| Nov 28, 2011 | Signed as free agent | José Molina | — | Tampa Bay Rays | Tampa Bay Rays signed free agent C Jose Molina. |
| Nov 28, 2011 | Released | Xavier Paul | — | Pittsburgh Pirates | Pittsburgh Pirates released LF Xavier Paul. |
| Nov 28, 2011 | Released | Darren Ford | — | San Francisco Giants | San Francisco Giants released CF Darren Ford. |
| Nov 28, 2011 | Signed as free agent | Yusmeiro Petit | — | San Francisco Giants | San Francisco Giants signed free agent RHP Yusmeiro Petit to a minor league contract. |
| Nov 28, 2011 | Signed as free agent | Rafael Moreno | — | Baltimore Orioles | Baltimore Orioles signed free agent RHP Rafael Moreno to a minor league contract. |
| Nov 28, 2011 | Signed as free agent | Miguel Pichardo | — | Baltimore Orioles | Baltimore Orioles signed free agent SS Miguel Pichardo to a minor league contract. |
| Nov 28, 2011 | Signed as free agent | Johan Salas | — | Baltimore Orioles | Baltimore Orioles signed free agent RHP Johan Salas to a minor league contract. |
| Nov 28, 2011 | Signed as free agent | Oscar Vasquez | — | Baltimore Orioles | Baltimore Orioles signed free agent 2B Oscar Vasquez to a minor league contract. |
| Nov 28, 2011 | Signed as free agent | Angel Perdomo | — | Toronto Blue Jays | Toronto Blue Jays signed free agent LHP Angel Perdomo to a minor league contract. |
| Nov 27, 2011 | Trade | Josh Lueke | Seattle Mariners | Tampa Bay Rays | Tampa Bay Rays traded C John Jaso to Seattle Mariners for RHP Josh Lueke. |
| Nov 26, 2011 | Trade | Luis Valbuena | Cleveland Guardians | Toronto Blue Jays | Cleveland Indians traded 2B Luis Valbuena to Toronto Blue Jays for cash. |
| Nov 26, 2011 | Signed as free agent | Victor Medina | — | Baltimore Orioles | Baltimore Orioles signed free agent OF Victor Medina to a minor league contract. |
| Nov 26, 2011 | Signed as free agent | Jeff Lanning | — | Philadelphia Phillies | Philadelphia Phillies signed free agent C Jeff Lanning to a minor league contract. |
| Nov 23, 2011 | Signed as free agent | Brandon Boggs | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent LF Brandon Boggs to a minor league contract and invited him to spring training. |
| Nov 23, 2011 | Signed as free agent | Jake Fox | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent C Jake Fox to a minor league contract and invited him to spring training. |
| Nov 23, 2011 | Signed as free agent | Shairon Martis | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent RHP Shairon Martis to a minor league contract and invited him to spring training. |
| Nov 23, 2011 | Signed as free agent | Kyle Cofield | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent Kyle Cofield. |
| Nov 23, 2011 | Signed as free agent | Stefan Welch | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent Stefan Welch. |
| Nov 23, 2011 | Signed as free agent | Ryan Doumit | — | Minnesota Twins | Minnesota Twins signed free agent C Ryan Doumit. |
| Nov 23, 2011 | Signed as free agent | Grady Sizemore | — | Cleveland Guardians | Cleveland Indians signed free agent CF Grady Sizemore. |
| Nov 23, 2011 | Signed as free agent | Bruce Chen | — | Kansas City Royals | Kansas City Royals signed free agent LHP Bruce Chen. |
| Nov 23, 2011 | Signed as free agent | Jonatan Isenia | — | Baltimore Orioles | Baltimore Orioles signed free agent RHP Jonatan Isenia to a minor league contract. |
| Nov 23, 2011 | Signed | David Wynn | — | New York Mets | New York Mets signed LHP David Wynn. |
| Nov 22, 2011 | Trade | John Baker | Miami Marlins | San Diego Padres | Miami Marlins traded C John Baker to San Diego Padres for LHP Wade LeBlanc. |
| Nov 22, 2011 | Signed as free agent | Adam Russell | — | Atlanta Braves | Atlanta Braves signed free agent RHP Adam Russell to a minor league contract and invited him to spring training. |
| Nov 22, 2011 | Signed as free agent | Jason Rice | — | Atlanta Braves | Atlanta Braves signed free agent RHP Jason Rice to a minor league contract and invited him to spring training. |
| Nov 22, 2011 | Signed as free agent | Dusty Hughes | — | Atlanta Braves | Atlanta Braves signed free agent LHP Dusty Hughes to a minor league contract and invited him to spring training. |
| Nov 22, 2011 | Signed as free agent | J.C. Boscan | — | Atlanta Braves | Atlanta Braves signed free agent C J.C. Boscan to a minor league contract and invited him to spring training. |
| Nov 22, 2011 | Signed as free agent | Drew Sutton | — | Atlanta Braves | Atlanta Braves signed free agent 3B Drew Sutton to a minor league contract and invited him to spring training. |
| Nov 22, 2011 | Signed as free agent | Josh Wilson | — | Atlanta Braves | Atlanta Braves signed free agent SS Josh Wilson to a minor league contract and invited him to spring training. |
| Nov 22, 2011 | Signed as free agent | Luis Durango | — | Atlanta Braves | Atlanta Braves signed free agent LF Luis Durango to a minor league contract and invited him to spring training. |
| Nov 22, 2011 | Signed as free agent | Jordan Parraz | — | Atlanta Braves | Atlanta Braves signed free agent RF Jordan Parraz to a minor league contract and invited him to spring training. |
| Nov 22, 2011 | Signed as free agent | Ian Gac | — | Atlanta Braves | Atlanta Braves signed free agent 1B Ian Gac to a minor league contract. |
| Nov 22, 2011 | Signed as free agent | Brahiam Maldonado | — | Atlanta Braves | Atlanta Braves signed free agent OF Brahiam Maldonado to a minor league contract. |
| Nov 21, 2011 | Signed as free agent | Clint Barmes | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent SS Clint Barmes. |
| Nov 21, 2011 | Signed as free agent | Matt Antonelli | — | Baltimore Orioles | Baltimore Orioles signed free agent Matt Antonelli. |
| Nov 21, 2011 | Signed as free agent | Joe Nathan | — | Texas Rangers | Texas Rangers signed free agent RHP Joe Nathan. |
| Nov 21, 2011 | Signed as free agent | Jerad Head | — | Detroit Tigers | Detroit Tigers signed free agent RF Jerad Head to a minor league contract and invited him to spring training. |
| Nov 21, 2011 | Signed as free agent | Darel Paulino | — | Seattle Mariners | Seattle Mariners signed free agent RHP Darel Paulino to a minor league contract. |
| Nov 20, 2011 | Trade | Ty Wigginton | Colorado Rockies | Philadelphia Phillies | Colorado Rockies traded 1B Ty Wigginton to Philadelphia Phillies. |
| Nov 19, 2011 | Signed as free agent | Yeizer Marrugo | — | Baltimore Orioles | Baltimore Orioles signed free agent RHP Yeizer Marrugo to a minor league contract. |
| Nov 19, 2011 | Signed as free agent | Brandon Moss | — | Athletics | Oakland Athletics signed free agent RF Brandon Moss to a minor league contract and invited him to spring training. |
| Nov 19, 2011 | Signed as free agent | Brandon Wood | — | Colorado Rockies | Colorado Rockies signed free agent SS Brandon Wood to a minor league contract and invited him to spring training. |
| Nov 19, 2011 | Signed as free agent | Joseph Carpabire | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Joseph Carpabire to a minor league contract. |
| Nov 19, 2011 | Signed as free agent | Edwin Fuentes | — | Toronto Blue Jays | Toronto Blue Jays signed free agent SS Edwin Fuentes to a minor league contract. |
| Nov 18, 2011 | Signed as free agent | Gerald Laird | — | Detroit Tigers | Detroit Tigers signed free agent C Gerald Laird. |
| Nov 18, 2011 | Signed as free agent | Lance Pendleton | — | Houston Astros | Houston Astros signed free agent RHP Lance Pendleton to a minor league contract and invited him to spring training. |
| Nov 18, 2011 | Signed as free agent | Jason Bulger | — | Minnesota Twins | Minnesota Twins signed free agent RHP Jason Bulger to a minor league contract and invited him to spring training. |
| Nov 18, 2011 | Signed as free agent | Samuel Deduno | — | Minnesota Twins | Minnesota Twins signed free agent RHP Samuel Deduno to a minor league contract and invited him to spring training. |
| Nov 18, 2011 | Signed as free agent | Matt Carson | — | Minnesota Twins | Minnesota Twins signed free agent CF Matt Carson to a minor league contract and invited him to spring training. |
| Nov 18, 2011 | Signed as free agent | Luis Perdomo | — | Minnesota Twins | Minnesota Twins signed free agent RHP Luis Perdomo to a minor league contract and invited him to spring training. |
| Nov 18, 2011 | Signed as free agent | Wilkin Ramirez | — | Minnesota Twins | Minnesota Twins signed free agent LF Wilkin Ramirez to a minor league contract and invited him to spring training. |
| Nov 18, 2011 | Signed as free agent | Brendan Wise | — | Minnesota Twins | Minnesota Twins signed free agent RHP Brendan Wise to a minor league contract and invited him to spring training. |
| Nov 18, 2011 | Signed as free agent | Jason Pridie | — | Athletics | Oakland Athletics signed free agent CF Jason Pridie to a minor league contract and invited him to spring training. |
| Nov 18, 2011 | Signed as free agent | Raudel Lazo | — | Miami Marlins | Miami Marlins signed free agent LHP Raudel Lazo to a minor league contract. |
| Nov 17, 2011 | Signed as free agent | Valentino Pascucci | — | New York Mets | New York Mets signed free agent 1B Valentino Pascucci to a minor league contract and invited him to spring training. |
| Nov 17, 2011 | Signed as free agent | Vinny Rottino | — | New York Mets | New York Mets signed free agent LF Vinny Rottino to a minor league contract and invited him to spring training. |
| Nov 17, 2011 | Signed as free agent | Brian Schneider | — | Philadelphia Phillies | Philadelphia Phillies signed free agent C Brian Schneider. |
| Nov 17, 2011 | Signed as free agent | Chad Reineke | — | Cincinnati Reds | Cincinnati Reds signed free agent RHP Chad Reineke to a minor league contract and invited him to spring training. |
| Nov 17, 2011 | Signed as free agent | Luis Antonio Rodriguez | — | Seattle Mariners | Seattle Mariners signed free agent SS Luis Rodriguez to a minor league contract and invited him to spring training. |
| Nov 17, 2011 | Signed as free agent | Henry Lunar | — | Cleveland Guardians | Cleveland Indians signed free agent C Henry Lunar to a minor league contract. |
| Nov 16, 2011 | Signed as free agent | Jamey Carroll | — | Minnesota Twins | Minnesota Twins signed free agent Jamey Carroll. |
| Nov 16, 2011 | Released | Alberto Gonzalez | — | San Diego Padres | San Diego Padres released 2B Alberto Gonzalez. |
| Nov 16, 2011 | Signed as free agent | Mark Kotsay | — | San Diego Padres | San Diego Padres signed free agent RF Mark Kotsay. |
| Nov 16, 2011 | Signed as free agent | Omir Santos | — | Detroit Tigers | Detroit Tigers signed free agent C Omir Santos to a minor league contract and invited him to spring training. |
| Nov 15, 2011 | Signed as free agent | Mark Ellis | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent 2B Mark Ellis. |
| Nov 15, 2011 | Signed as free agent | Scott Moore | — | Houston Astros | Houston Astros signed free agent 3B Scott Moore to a minor league contract and invited him to spring training. |
| Nov 15, 2011 | Signed as free agent | Aaron Hill | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent 2B Aaron Hill. |
| Nov 15, 2011 | Signed as free agent | Matt Treanor | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent C Matt Treanor. |
| Nov 15, 2011 | Released | Anthony Ortega | — | Los Angeles Angels | Los Angeles Angels released RHP Anthony Ortega. |
| Nov 15, 2011 | Signed as free agent | Tommy Hottovy | — | Kansas City Royals | Kansas City Royals signed free agent LHP Tommy Hottovy to a minor league contract and invited him to spring training. |
| Nov 15, 2011 | Signed as free agent | Phil Dumatrait | — | Minnesota Twins | Minnesota Twins signed free agent LHP Phil Dumatrait to a minor league contract and invited him to spring training. |
| Nov 14, 2011 | Signed as free agent | Joe Thurston | — | Houston Astros | Houston Astros signed free agent 2B Joe Thurston to a minor league contract and invited him to spring training. |
| Nov 14, 2011 | Signed as free agent | Jonathan Papelbon | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Jonathan Papelbon. |
| Nov 12, 2011 | Signed as free agent | Jared Burton | — | Minnesota Twins | Minnesota Twins signed free agent RHP Jared Burton to a minor league contract and invited him to spring training. |
| Nov 12, 2011 | Signed as free agent | Brian Dinkelman | — | Minnesota Twins | Minnesota Twins signed free agent 2B Brian Dinkelman to a minor league contract and invited him to spring training. |
| Nov 12, 2011 | Signed as free agent | Brad Snyder | — | Houston Astros | Houston Astros signed free agent RF Brad Snyder to a minor league contract and invited him to spring training. |
| Nov 12, 2011 | Signed as free agent | Adam Loewen | — | New York Mets | New York Mets signed free agent RF Adam Loewen to a minor league contract and invited him to spring training. |
| Nov 11, 2011 | Signed as free agent | Jim Miller | — | Athletics | Oakland Athletics signed free agent RHP Jim Miller to a minor league contract and invited him to spring training. |
| Nov 11, 2011 | Signed as free agent | Alejandro Viloria | — | Kansas City Royals | Kansas City Royals signed free agent LHP Alejandro Viloria to a minor league contract. |
| Nov 11, 2011 | Signed as free agent | Carlos Rodriguez | — | Seattle Mariners | Seattle Mariners signed free agent RHP Carlos Rodriguez to a minor league contract. |
| Nov 10, 2011 | Signed as free agent | Travis Buck | — | Houston Astros | Houston Astros signed free agent LF Travis Buck to a minor league contract and invited him to spring training. |
| Nov 10, 2011 | Signed as free agent | Nick Stavinoha | — | Houston Astros | Houston Astros signed free agent RF Nick Stavinoha to a minor league contract and invited him to spring training. |
| Nov 10, 2011 | Signed as free agent | Rod Barajas | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent C Rod Barajas. |
| Nov 10, 2011 | Signed as free agent | Michel Hernandez | — | Cleveland Guardians | Cleveland Indians signed free agent C Michel Hernandez to a minor league contract and invited him to spring training. |
| Nov 10, 2011 | Signed as free agent | Donnie Veal | — | Chicago White Sox | Chicago White Sox signed free agent Donnie Veal. |
| Nov 10, 2011 | Signed as free agent | Jose Quintana | — | Chicago White Sox | Chicago White Sox signed free agent Jose Quintana. |
| Nov 10, 2011 | Signed as free agent | Erick Almonte | — | Milwaukee Brewers | Milwaukee Brewers signed free agent RF Erick Almonte to a minor league contract. |
| Nov 10, 2011 | Signed as free agent | Dallas McPherson | — | Chicago White Sox | Chicago White Sox signed free agent 3B Dallas McPherson to a minor league contract and invited him to spring training. |
| Nov 10, 2011 | Signed as free agent | Marco Carrillo | — | Chicago Cubs | Chicago Cubs signed free agent RHP Marco Antonio Carrillo to a minor league contract and invited him to spring training. |
| Nov 10, 2011 | Signed as free agent | Carlos Belonis | — | Milwaukee Brewers | Milwaukee Brewers signed free agent SS Carlos Belonis to a minor league contract. |
| Nov 9, 2011 | Signed as free agent | Willie Bloomquist | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent SS Willie Bloomquist. |
| Nov 9, 2011 | Signed as free agent | Jeff Fiorentino | — | Athletics | Oakland Athletics signed free agent RF Jeff Fiorentino to a minor league contract and invited him to spring training. |
| Nov 7, 2011 | Trade | Jonathan Sánchez | San Francisco Giants | Kansas City Royals | Kansas City Royals Traded LF Melky Cabrera to San Francisco Giants; San Francisco Giants Traded LHP Jonathan Sanchez to Kansas City Royals and Richmond Flying Squirrels Traded LHP Ryan Verdugo to Northwest Arkansas Naturals. |
| Nov 7, 2011 | Released | Kam Mickolio | — | Arizona Diamondbacks | Arizona Diamondbacks released RHP Kam Mickolio. |
| Nov 7, 2011 | Signed as free agent | Daryl Jones | — | Cincinnati Reds | Cincinnati Reds signed free agent LF Daryl Jones to a minor league contract and invited him to spring training. |
| Nov 7, 2011 | Signed as free agent | Hector Villarroel | — | Colorado Rockies | Colorado Rockies signed free agent LHP Hector Villarroel to a minor league contract. |
| Nov 7, 2011 | Signed as free agent | Denzel Richardson | — | Colorado Rockies | Colorado Rockies signed free agent OF Denzel Richardson to a minor league contract. |
| Nov 6, 2011 | Signed as free agent | Robinson Leyer | — | Chicago White Sox | Chicago White Sox signed free agent RHP Robinson Leyer. |
| Nov 5, 2011 | Signed as free agent | Jim Thome | — | Philadelphia Phillies | Philadelphia Phillies signed free agent 1B Jim Thome. |
| Nov 5, 2011 | Signed as free agent | Yunior Santana | — | Milwaukee Brewers | Milwaukee Brewers signed free agent OF Yunior Santana to a minor league contract. |
| Nov 4, 2011 | Signed as free agent | Chien-Ming Wang | — | Washington Nationals | Washington Nationals signed free agent RHP Chien-Ming Wang. |
| Nov 4, 2011 | Trade | Trystan Magnuson | Athletics | Toronto Blue Jays | Oakland Athletics traded RHP Trystan Magnuson to Toronto Blue Jays. |
| Nov 4, 2011 | Signed as free agent | Édgar González | — | Athletics | Oakland Athletics signed free agent RHP Edgar Gonzalez to a minor league contract and invited him to spring training. |
| Nov 4, 2011 | Signed | Wes Timmons | — | Athletics | Oakland Athletics signed 1B Wes Timmons. |
| Nov 4, 2011 | Signed as free agent | Corky Miller | — | Cincinnati Reds | Cincinnati Reds signed free agent C Corky Miller to a minor league contract and invited him to spring training. |
| Nov 4, 2011 | Signed as free agent | Alex Carreras | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent LHP Alexander Carreras to a minor league contract. |
| Nov 4, 2011 | Signed as free agent | Ugueth Urbina | — | Seattle Mariners | Seattle Mariners signed free agent RHP Ugueth Urbina to a minor league contract. |
| Nov 4, 2011 | Signed as free agent | Joshua Franco | — | Seattle Mariners | Seattle Mariners signed free agent 3B Joshua Franco to a minor league contract. |
| Nov 3, 2011 | Signed as free agent | Juan Rivera | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent Juan Rivera. |
| Nov 3, 2011 | Signed as free agent | Henry Blanco | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent C Henry Blanco. |
| Nov 3, 2011 | Signed as free agent | Brian Bruney | — | Chicago White Sox | Chicago White Sox signed free agent RHP Brian Bruney to a minor league contract and invited him to spring training. |
| Nov 3, 2011 | Signed as free agent | Hiomarvic Colmenarez | — | Philadelphia Phillies | Philadelphia Phillies signed free agent C Hiomarvic Colmenarez to a minor league contract. |
| Nov 3, 2011 | Signed as free agent | Brandol Perez | — | Milwaukee Brewers | Milwaukee Brewers signed free agent LHP Brandol Perez to a minor league contract. |
| Nov 2, 2011 | Signed as free agent | John McDonald | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent SS John McDonald. |
| Nov 2, 2011 | Signed as free agent | Deninson Martinez | — | San Diego Padres | San Diego Padres signed free agent LHP Deninson Martinez to a minor league contract. |
| Nov 2, 2011 | Signed as free agent | Daniel Thieben | — | Seattle Mariners | Seattle Mariners signed free agent RHP Daniel Thieben to a minor league contract. |
| Nov 1, 2011 | Signed as free agent | Tim Wood | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent RHP Tim Wood to a minor league contract and invited him to spring training. |
| Nov 1, 2011 | Signed as free agent | Daniel Bravo | — | San Diego Padres | San Diego Padres signed free agent SS Daniel Bravo to a minor league contract. |
| Nov 1, 2011 | Signed as free agent | Jhonathan Carrillo | — | San Diego Padres | San Diego Padres signed free agent LHP Jhonathan Carrillo to a minor league contract. |
| Nov 1, 2011 | Signed as free agent | Franchy Cordero | — | San Diego Padres | San Diego Padres signed free agent SS Franchy Cordero to a minor league contract. |
| Nov 1, 2011 | Signed as free agent | Carlos Lora | — | San Diego Padres | San Diego Padres signed free agent RHP Carlos Lora to a minor league contract. |
| Nov 1, 2011 | Signed as free agent | Joel Peralta | — | San Diego Padres | San Diego Padres signed free agent RHP Joel Peralta to a minor league contract. |
| Nov 1, 2011 | Signed as free agent | Franmil Reyes | — | San Diego Padres | San Diego Padres signed free agent OF Franmil Reyes to a minor league contract. |
| Nov 1, 2011 | Signed as free agent | Manuel Reyes | — | San Diego Padres | San Diego Padres signed free agent RHP Manuel Reyes to a minor league contract. |
| Nov 1, 2011 | Signed as free agent | Wilson Santos | — | San Diego Padres | San Diego Padres signed free agent RHP Wilson Santos to a minor league contract. |
| Nov 1, 2011 | Signed as free agent | Leonardo Solano | — | San Diego Padres | San Diego Padres signed free agent RHP Leonardo Solano to a minor league contract. |
| Nov 1, 2011 | Signed as free agent | William Cuicas | — | Philadelphia Phillies | Philadelphia Phillies signed free agent SS William Cuicas to a minor league contract. |
| Oct 31, 2011 | Trade | Derek Lowe | Atlanta Braves | Cleveland Guardians | Atlanta Braves Traded RHP Derek Lowe to Cleveland Indians and Kinston Indians Traded LHP Chris Jones to Lynchburg Hillcats. |
| Oct 28, 2011 | Signed as free agent | Sebastian Perez | — | Minnesota Twins | Minnesota Twins signed free agent RHP Sebastian Perez to a minor league contract. |
| Oct 27, 2011 | Signed as free agent | Ranyelmy Alberto | — | Los Angeles Angels | Los Angeles Angels signed free agent OF Ranyelmy Mendoza to a minor league contract. |
| Oct 27, 2011 | Signed as free agent | Ayendy Perez | — | Los Angeles Angels | Los Angeles Angels signed free agent OF Ayendy Perez to a minor league contract. |
| Oct 26, 2011 | Signed as free agent | Harrison Kain | — | Los Angeles Angels | Los Angeles Angels signed free agent 2B Harrison Kain to a minor league contract. |
| Oct 25, 2011 | Released | Michael Wuertz | — | Athletics | Oakland Athletics released RHP Michael Wuertz. |
| Oct 25, 2011 | Signed as free agent | Jack Van Leur | — | Philadelphia Phillies | Philadelphia Phillies signed free agent LHP Jack Van Leur to a minor league contract. |
| Oct 20, 2011 | Signed as free agent | Enmanuel Camacho | — | Kansas City Royals | Kansas City Royals signed free agent LHP Enmanuel Camacho to a minor league contract. |
| Oct 20, 2011 | Signed as free agent | Yoandy Barroso | — | Chicago White Sox | Chicago White Sox signed free agent OF Yoandy Barroso to a minor league contract. |
| Oct 19, 2011 | Released | Ryota Igarashi | — | New York Mets | New York Mets released RHP Ryota Igarashi. |
| Oct 17, 2011 | Signed as free agent | Jhonnathan Teran | — | Tampa Bay Rays | Tampa Bay Rays signed free agent IF Jhonnathan Teran to a minor league contract. |
| Oct 16, 2011 | Signed as free agent | Sergio Velis | — | Philadelphia Phillies | Philadelphia Phillies signed free agent LHP Sergio Velis to a minor league contract. |
| Oct 14, 2011 | Released | Ramon Pena | — | Chicago White Sox | Chicago White Sox released RHP Ramon Pena. |
| Oct 13, 2011 | Released | Juan Gutierrez | — | Arizona Diamondbacks | Arizona Diamondbacks released RHP Juan Gutierrez. |
| Oct 13, 2011 | Signed as free agent | Andres Serrano | — | St. Louis Cardinals | St. Louis Cardinals signed free agent RHP Andres Serrano to a minor league contract. |
| Oct 6, 2011 | Signed as free agent | Juan Alcantara | — | Detroit Tigers | Detroit Tigers signed free agent RHP Juan Alcantara to a minor league contract. |
| Oct 6, 2011 | Signed as free agent | Sandy Báez | — | Detroit Tigers | Detroit Tigers signed free agent RHP Sandy Baez to a minor league contract. |
| Oct 6, 2011 | Signed as free agent | Carlos Lara | — | Detroit Tigers | Detroit Tigers signed free agent RHP Carlos Lara to a minor league contract. |
| Oct 6, 2011 | Signed as free agent | Manuel Joseph | — | Detroit Tigers | Detroit Tigers signed free agent SS Manuel Joseph to a minor league contract. |
| Oct 5, 2011 | Signed as free agent | Carlos Gonzalez | — | Chicago White Sox | Chicago White Sox signed free agent SS Carlos Gonzalez to a minor league contract. |
| Oct 3, 2011 | Signed as free agent | Fabian Bohorquez | — | Cincinnati Reds | Cincinnati Reds signed free agent RHP Fabian Bohorquez to a minor league contract. |
| Oct 3, 2011 | Signed as free agent | Kevin Garcia | — | Cincinnati Reds | Cincinnati Reds signed free agent OF Kevin Garcia to a minor league contract. |
| Oct 3, 2011 | Signed as free agent | Argenis Silva | — | Minnesota Twins | Minnesota Twins signed free agent RHP Argenis Silva to a minor league contract. |
| Oct 3, 2011 | Signed as free agent | Hengerber Medina | — | San Francisco Giants | San Francisco Giants signed free agent SS Hengerber Medina to a minor league contract. |
| Sep 30, 2011 | Signed as free agent | Jadison Jimenez | — | Minnesota Twins | Minnesota Twins signed free agent LHP Jadison Jimenez to a minor league contract. |
| Sep 29, 2011 | Trade | Ozzie Martínez | Miami Marlins | Chicago White Sox | Florida Marlins Traded RHP Jhan Marinez and SS Osvaldo Martinez to Chicago White Sox and Bristol White Sox Traded RHP Ricardo Andres to Greensboro Grasshoppers. |
| Sep 29, 2011 | Signed as free agent | Jay Buente | — | Tampa Bay Rays | Tampa Bay Rays signed free agent RHP Jay Buente to a minor league contract. |
| Sep 27, 2011 | Trade | Kila Ka'aihue | Kansas City Royals | Athletics | Sacramento River Cats Traded RHP Ethan Hollingsworth to Omaha Storm Chasers and Kansas City Royals Traded 1B Kila Ka'aihue to Oakland Athletics. |
| Sep 24, 2011 | Signed as free agent | Ronny Rios | — | Kansas City Royals | Kansas City Royals signed free agent RHP Ronny Rios to a minor league contract. |
| Sep 23, 2011 | Trade | Mike Zagurski | Philadelphia Phillies | Arizona Diamondbacks | Philadelphia Phillies traded LHP Mike Zagurski to Arizona Diamondbacks. |
| Sep 23, 2011 | Released | Drew Naylor | — | Philadelphia Phillies | Philadelphia Phillies released RHP Drew Naylor. |
| Sep 23, 2011 | Signed as free agent | Deiferson Barreto | — | Toronto Blue Jays | Toronto Blue Jays signed free agent IF Deiferson Barreto to a minor league contract. |
| Sep 23, 2011 | Signed as free agent | Shao-Ching Chiang | — | Cleveland Guardians | Cleveland Indians signed free agent RHP Shao-Ching Chiang to a minor league contract. |
| Sep 22, 2011 | Signed as free agent | Jesus Tinoco | — | Toronto Blue Jays | Toronto Blue Jays signed free agent Jesus Tinoco. |
| Sep 21, 2011 | Signed as free agent | Cristian Cano | — | Kansas City Royals | Kansas City Royals signed free agent OF Cristian Cano to a minor league contract. |
| Sep 21, 2011 | Signed as free agent | Luis Jean | — | Colorado Rockies | Colorado Rockies signed free agent SS Luis Jean to a minor league contract. |
| Sep 19, 2011 | Signed as free agent | Miguel De La Cruz | — | Los Angeles Angels | Los Angeles Angels signed free agent RHP Miguel De La Cruz to a minor league contract. |
| Sep 16, 2011 | Signed as free agent | Wilkyns Jimenez | — | Colorado Rockies | Colorado Rockies signed free agent C Wilkyns Jimenez to a minor league contract. |
| Sep 16, 2011 | Signed as free agent | Anderson Ramirez | — | Cleveland Guardians | Cleveland Indians signed free agent RHP Anderson Ramirez to a minor league contract. |
| Sep 15, 2011 | Signed as free agent | Kaleb Fleck | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Kaleb Fleck to a minor league contract. |
| Sep 14, 2011 | Released | Jay Buente | — | Tampa Bay Rays | Tampa Bay Rays released RHP Jay Buente. |
| Sep 14, 2011 | Signed as free agent | Erick Leal | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Erick Leal to a minor league contract. |
| Sep 13, 2011 | Released | Mike Cameron | — | Miami Marlins | Florida Marlins released CF Mike Cameron. |
| Sep 13, 2011 | Signed as free agent | Franklin Navarro | — | Detroit Tigers | Detroit Tigers signed free agent C Franklin Navarro to a minor league contract. |
| Sep 13, 2011 | Signed as free agent | Arvicent Perez | — | Detroit Tigers | Detroit Tigers signed free agent C Arvicent Perez to a minor league contract. |
| Sep 13, 2011 | Signed as free agent | Dailyn Martinez | — | St. Louis Cardinals | St. Louis Cardinals signed free agent RHP Dailyn Martinez to a minor league contract. |
| Sep 13, 2011 | Signed as free agent | Bladimil Franco | — | St. Louis Cardinals | St. Louis Cardinals signed free agent OF Bladimil Franco. |
| Sep 12, 2011 | Released | Mark Hendrickson | — | Baltimore Orioles | Baltimore Orioles released LHP Mark Hendrickson. |
| Sep 11, 2011 | Signed as free agent | Alan Abreu | — | Houston Astros | Houston Astros signed free agent RHP Alan Abreu to a minor league contract. |
| Sep 9, 2011 | Signed as free agent | Alejandro Solarte | — | Toronto Blue Jays | Toronto Blue Jays signed free agent LHP Alejandro Solarte to a minor league contract. |
| Sep 8, 2011 | Released | Alfredo Amezaga | — | Miami Marlins | Florida Marlins released 2B Alfredo Amezaga. |
| Sep 8, 2011 | Released | Aaron Rowand | — | San Francisco Giants | San Francisco Giants released CF Aaron Rowand. |
| Sep 8, 2011 | Released | Miguel Tejada | — | San Francisco Giants | San Francisco Giants released 3B Miguel Tejada. |
| Sep 8, 2011 | Signed as free agent | Ivan Mora | — | Baltimore Orioles | Baltimore Orioles signed free agent OF Ivan Mora to a minor league contract. |
| Sep 8, 2011 | Signed as free agent | Rafael P Valera | — | Minnesota Twins | Minnesota Twins signed free agent 2B Rafael P Valera to a minor league contract. |
| Sep 8, 2011 | Signed as free agent | Engelb Vielma | — | Minnesota Twins | Minnesota Twins signed free agent SS Engelb Vielma to a minor league contract. |
| Sep 6, 2011 | Released | Adam Carr | — | Washington Nationals | Washington Nationals released RHP Adam Carr. |
| Sep 6, 2011 | Signed as free agent | Rob Cooper | — | Philadelphia Phillies | Philadelphia Phillies signed free agent LHP Rob Cooper to a minor league contract. |
| Sep 2, 2011 | Released | Julio Lugo | — | Atlanta Braves | Atlanta Braves released 2B Julio Lugo. |
| Sep 2, 2011 | Released | Brian Tallet | — | Toronto Blue Jays | Toronto Blue Jays released LHP Brian Tallet. |
| Sep 2, 2011 | Signed as free agent | Elvis Diaz | — | Kansas City Royals | Kansas City Royals signed free agent RHP Elvis Diaz to a minor league contract. |
| Sep 2, 2011 | Signed as free agent | Pedro Fernandez | — | Kansas City Royals | Kansas City Royals signed free agent RHP Pedro Fernandez to a minor league contract. |
| Sep 2, 2011 | Signed as free agent | Francis Jesus | — | Colorado Rockies | Colorado Rockies signed free agent RHP Francis Jesus to a minor league contract. |
| Sep 2, 2011 | Signed as free agent | Jorge Andrade | — | Minnesota Twins | Minnesota Twins signed free agent SS Jorge Andrade to a minor league contract. |
| Sep 1, 2011 | Trade | Jason Rice | Boston Red Sox | Athletics | Boston Red Sox traded RHP Jason Rice to Oakland Athletics for LF Conor Jackson. |
| Sep 1, 2011 | Trade | Daniel Herrera | Milwaukee Brewers | New York Mets | Milwaukee Brewers Traded LHP Daniel Herrera to New York Mets and Wisconsin Timber Rattlers Traded RHP Adrian Rosario to St. Lucie Mets. |
| Sep 1, 2011 | Signed as free agent | Clayton Tanner | — | Cincinnati Reds | Cincinnati Reds signed free agent LHP Clayton Tanner to a minor league contract. |
| Sep 1, 2011 | Signed as free agent | Delvin Perez | — | Philadelphia Phillies | Philadelphia Phillies signed free agent LHP Delvin Perez to a minor league contract. |
| Sep 1, 2011 | Signed as free agent | Chabriel Pizarro | — | Philadelphia Phillies | Philadelphia Phillies signed free agent C Chabriel Pizarro to a minor league contract. |
| Aug 31, 2011 | Trade | Matt Diaz | Pittsburgh Pirates | Atlanta Braves | Pittsburgh Pirates traded cash and LF Matt Diaz to Atlanta Braves for Player To Be Named Later. |
| Aug 31, 2011 | Trade | Michael Gonzalez | Baltimore Orioles | Texas Rangers | Baltimore Orioles traded LHP Michael Gonzalez to Texas Rangers for Player To Be Named Later. |
| Aug 31, 2011 | Trade | Matt Treanor | Kansas City Royals | Texas Rangers | Kansas City Royals traded C Matt Treanor to Texas Rangers. |
| Aug 31, 2011 | Trade | Jack Wilson | Seattle Mariners | Atlanta Braves | Seattle Mariners traded 2B Jack Wilson to Atlanta Braves. |
| Aug 31, 2011 | Signed as free agent | Joey Gathright | — | Boston Red Sox | Boston Red Sox signed free agent CF Joey Gathright to a minor league contract. |
| Aug 31, 2011 | Signed as free agent | Douglas Arguello | — | Texas Rangers | Texas Rangers signed free agent LHP Douglas Arguello to a minor league contract. |
| Aug 31, 2011 | Released | Matt Tuiasosopo | — | Seattle Mariners | Seattle Mariners released 3B Matt Tuiasosopo. |
| Aug 31, 2011 | Signed as free agent | Moises Cedeno | — | New York Yankees | New York Yankees signed free agent RHP Moises Cedeno to a minor league contract. |
| Aug 30, 2011 | Signed as free agent | Roberto Osuna | — | Toronto Blue Jays | Toronto Blue Jays signed free agent RHP Roberto Osuna to a minor league contract. |
| Aug 30, 2011 | Signed as free agent | Jesus Gonzalez | — | Toronto Blue Jays | Toronto Blue Jays signed free agent OF Jesus Gonzalez to a minor league contract. |
| Aug 30, 2011 | Signed as free agent | Manuel Cordova | — | Toronto Blue Jays | Toronto Blue Jays signed free agent RHP Manuel Cordova to a minor league contract. |
| Aug 30, 2011 | Signed as free agent | Alberto Tirado | — | Toronto Blue Jays | Toronto Blue Jays signed free agent RHP Alberto Tirado to a minor league contract. |
| Aug 30, 2011 | Released | Joe Beimel | — | Pittsburgh Pirates | Pittsburgh Pirates released LHP Joe Beimel. |
| Aug 30, 2011 | Released | Ryan Tucker | — | Texas Rangers | Texas Rangers released RHP Ryan Tucker. |
| Aug 30, 2011 | Released | Dioner Navarro | — | Los Angeles Dodgers | Los Angeles Dodgers released C Dioner Navarro. |
| Aug 30, 2011 | Signed | Daniel Camarena | — | New York Yankees | New York Yankees signed LHP Dan Camarena. |
| Aug 30, 2011 | Signed | Chaz Hebert | — | New York Yankees | New York Yankees signed LHP Chaz Hebert. |
| Aug 30, 2011 | Signed as free agent | Trever Miller | — | Boston Red Sox | Boston Red Sox signed free agent LHP Trever Miller to a minor league contract. |
| Aug 30, 2011 | Signed as free agent | David Henrie | — | Chicago Cubs | Chicago Cubs signed free agent RHP David Henrie to a minor league contract. |
| Aug 29, 2011 | Released | Clayton Tanner | — | San Francisco Giants | San Francisco Giants released LHP Clayton Tanner. |
| Aug 28, 2011 | Signed as free agent | Kevin Barrios | — | Tampa Bay Rays | Tampa Bay Rays signed free agent C Kevin Barrios to a minor league contract. |
| Aug 27, 2011 | Signed as free agent | Jesús Castillo | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Jesus Castillo to a minor league contract. |
| Aug 26, 2011 | Trade | Jim Thome | Minnesota Twins | Cleveland Guardians | Minnesota Twins traded Jim Thome to Cleveland Indians. |
| Aug 25, 2011 | Signed as free agent | Luke Willson | — | Toronto Blue Jays | Toronto Blue Jays signed free agent 1B Luke Willson to a minor league contract. |
| Aug 25, 2011 | Signed | Andrew Kittredge | — | Seattle Mariners | Seattle Mariners signed RHP Andrew Kittredge. |
| Aug 24, 2011 | Signed as free agent | Juan Jaime | — | Atlanta Braves | Atlanta Braves signed free agent RHP Juan Jaime to a minor league contract. |
| Aug 23, 2011 | Trade | Aaron Hill | Toronto Blue Jays | Arizona Diamondbacks | Toronto Blue Jays traded 2B Aaron Hill and SS John McDonald to Arizona Diamondbacks for 2B Kelly Johnson. |
| Aug 23, 2011 | Released | Matt Mangini | — | Seattle Mariners | Seattle Mariners released 3B Matt Mangini. |
| Aug 23, 2011 | Signed as free agent | Mike Loree | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent RHP Mike Loree to a minor league contract. |
| Aug 23, 2011 | Signed as free agent | Vance Albitz | — | St. Louis Cardinals | St. Louis Cardinals signed free agent SS Vance Albitz to a minor league contract. |
| Aug 23, 2011 | Signed as free agent | Carlos Tocci | — | Philadelphia Phillies | Philadelphia Phillies signed free agent OF Carlos Tocci to a minor league contract. |
| Aug 22, 2011 | Signed as free agent | Nelson Figueroa | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent RHP Nelson Figueroa to a minor league contract. |
| Aug 21, 2011 | Released | Trever Miller | — | Toronto Blue Jays | Toronto Blue Jays released LHP Trever Miller. |
| Aug 21, 2011 | Signed as free agent | Aaron Heilman | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent RHP Aaron Heilman to a minor league contract. |
| Aug 21, 2011 | Signed | Greg Bird | — | New York Yankees | New York Yankees signed C Greg Bird. |
| Aug 21, 2011 | Signed | Jake Cave | — | New York Yankees | New York Yankees signed LHP Jake Cave. |
| Aug 21, 2011 | Signed | Jeff Diehl | — | New York Mets | New York Mets signed C Jeff Diehl. |
| Aug 21, 2011 | Signed as free agent | Jason Stevenson | — | San Francisco Giants | San Francisco Giants signed free agent LHP Jason Stevenson to a minor league contract. |
| Aug 20, 2011 | Signed | Kevin Taylor | — | Los Angeles Dodgers | Los Angeles Dodgers signed 2B Kevin Taylor. |
| Aug 20, 2011 | Signed | Chris Marlowe | — | San Francisco Giants | San Francisco Giants signed RHP Chris Marlowe. |
| Aug 20, 2011 | Signed as free agent | Juan Perez | — | St. Louis Cardinals | St. Louis Cardinals signed free agent RHP Juan Perez to a minor league contract. |
| Aug 20, 2011 | Signed as free agent | Dylan De Meyer | — | Seattle Mariners | Seattle Mariners signed free agent RHP Dylan De Meyer to a minor league contract. |
| Aug 19, 2011 | Signed as free agent | Caleb Thielbar | — | Minnesota Twins | Minnesota Twins signed free agent LHP Caleb Thielbar to a minor league contract. |
| Aug 19, 2011 | Signed as free agent | Kyle Davies | — | Toronto Blue Jays | Toronto Blue Jays signed free agent RHP Kyle Davies to a minor league contract. |
| Aug 19, 2011 | Signed as free agent | Wes Helms | — | Atlanta Braves | Atlanta Braves signed free agent 3B Wes Helms to a minor league contract. |
| Aug 18, 2011 | Trade | Tim Wood | Pittsburgh Pirates | Texas Rangers | Pittsburgh Pirates traded RHP Tim Wood to Texas Rangers. |
| Aug 18, 2011 | Released | Philippe Valiquette | — | Cincinnati Reds | Cincinnati Reds released LHP Philippe Valiquette. |
| Aug 18, 2011 | Signed as free agent | Greg Smith | — | Boston Red Sox | Boston Red Sox signed free agent LHP Greg Smith to a minor league contract. |
| Aug 18, 2011 | Signed as free agent | Ryan Zrenda | — | Baltimore Orioles | Baltimore Orioles signed free agent IF Ryan Zrenda to a minor league contract. |
| Aug 18, 2011 | Signed as free agent | Christian Cespedes | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Christian Cespedes to a minor league contract. |
| Aug 18, 2011 | Signed as free agent | Javier Betancourt | — | Detroit Tigers | Detroit Tigers signed free agent SS Javier Betancourt to a minor league contract. |
| Aug 18, 2011 | Signed as free agent | Gabriel Santana | — | Los Angeles Angels | Los Angeles Angels signed free agent C Gabriel Santana to a minor league contract. |
| Aug 18, 2011 | Signed as free agent | Jairo Martinez | — | Cincinnati Reds | Cincinnati Reds signed free agent LHP Jairo Martinez to a minor league contract. |
| Aug 18, 2011 | Signed as free agent | Francisco Gracesqui | — | Toronto Blue Jays | Toronto Blue Jays signed free agent LHP Francisco Gracesqui to a minor league contract. |
| Aug 17, 2011 | Signed | Kevin Comer | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Kevin Comer. |
| Aug 17, 2011 | Signed as free agent | Victor Sanchez | — | Seattle Mariners | Seattle Mariners signed free agent RHP Victor Sanchez to a minor league contract. |
| Aug 17, 2011 | Signed as free agent | Jose Leal | — | Seattle Mariners | Seattle Mariners signed free agent OF Jose Leal to a minor league contract. |
| Aug 17, 2011 | Trade | Chance Ruffin | Detroit Tigers | Seattle Mariners | Detroit Tigers traded RHP Chance Ruffin to Seattle Mariners. |
| Aug 17, 2011 | Released | Austin Kearns | — | Cleveland Guardians | Cleveland Indians released LF Austin Kearns. |
| Aug 17, 2011 | Signed | Michael Johnson | — | Los Angeles Angels | Los Angeles Angels signed LHP Michael Johnson. |
| Aug 17, 2011 | Signed as free agent | Jose Carlos Urena | — | San Diego Padres | San Diego Padres signed free agent OF Jose Urena to a minor league contract. |
| Aug 17, 2011 | Signed | Matt Spalding | — | Boston Red Sox | Boston Red Sox signed RHP Matt Spalding. |
| Aug 16, 2011 | Trade | Lester Oliveros | Detroit Tigers | Minnesota Twins | Detroit Tigers traded RHP Lester Oliveros to Minnesota Twins. |
| Aug 16, 2011 | Signed | Ryan O'Sullivan | — | Los Angeles Dodgers | Los Angeles Dodgers signed RHP Ryan O'Sullivan. |
| Aug 16, 2011 | Signed as free agent | Jeff Howell | — | Boston Red Sox | Boston Red Sox signed free agent C Jeff Howell to a minor league contract. |
| Aug 15, 2011 | Signed as free agent | Dave Bush | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Dave Bush to a minor league contract. |
| Aug 15, 2011 | Trade | Delmon Young | Minnesota Twins | Detroit Tigers | Minnesota Twins Traded LF Delmon Young to Detroit Tigers; Detroit Tigers Traded Player To Be Named Later to Minnesota Twins and Lakeland Flying Tigers Traded LHP Cole Nelson to Fort Myers Miracle. |
| Aug 15, 2011 | Signed | Kyle Smith | — | Kansas City Royals | Kansas City Royals signed Kyle Smith. |
| Aug 15, 2011 | Signed | Jakob Junis | — | Kansas City Royals | Kansas City Royals signed RHP Jake Junis. |
| Aug 15, 2011 | Signed | Patrick Leonard | — | Kansas City Royals | Kansas City Royals signed 3B Patrick Leonard. |
| Aug 15, 2011 | Signed | Christian Binford | — | Kansas City Royals | Kansas City Royals signed RHP Christian Binford. |
| Aug 15, 2011 | Signed | Andrew Chafin | — | Arizona Diamondbacks | Arizona Diamondbacks signed LHP Andrew Chafin. |
| Aug 15, 2011 | Signed | Anthony Meo | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP Anthony Meo. |
| Aug 15, 2011 | Signed | Michael Pérez | — | Arizona Diamondbacks | Arizona Diamondbacks signed C Michael Perez. |
| Aug 15, 2011 | Signed | Charlie Tilson | — | St. Louis Cardinals | St. Louis Cardinals signed OF Charlie Tilson. |
| Aug 15, 2011 | Signed | Dillon Howard | — | Cleveland Guardians | Cleveland Indians signed RHP Dillon Howard. |
| Aug 15, 2011 | Signed | Clay Holmes | — | Pittsburgh Pirates | Pittsburgh Pirates signed RHP Clay Holmes. |
| Aug 15, 2011 | Signed | Francisco Lindor | — | Cleveland Guardians | Cleveland Indians signed SS Francisco Lindor. |
| Aug 15, 2011 | Signed | Chris Lamb | — | Athletics | Oakland Athletics signed LHP Chris Lamb. |
| Aug 15, 2011 | Signed | Colin O'Connell | — | Athletics | Oakland Athletics signed RHP Colin O'Connell. |
| Aug 15, 2011 | Signed | Shawn Armstrong | — | Cleveland Guardians | Cleveland Indians signed RHP Shawn Armstrong. |
| Aug 15, 2011 | Signed | Archie Bradley | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP Archie Bradley. |
| Aug 15, 2011 | Signed | George Springer | — | Houston Astros | Houston Astros signed OF George Springer. |
| Aug 15, 2011 | Signed | Jack Armstrong | — | Houston Astros | Houston Astros signed RHP Jack Armstrong. |
| Aug 15, 2011 | Signed | Bubba Starling | — | Kansas City Royals | Kansas City Royals signed OF Bubba Starling. |
| Aug 15, 2011 | Signed | Bryan Brickhouse | — | Kansas City Royals | Kansas City Royals signed RHP Bryan Brickhouse. |
| Aug 15, 2011 | Signed | Jack López | — | Kansas City Royals | Kansas City Royals signed SS Jack Lopez. |
| Aug 15, 2011 | Signed | Kylin Turnbull | — | Washington Nationals | Washington Nationals signed LHP Kylin Turnbull. |
| Aug 15, 2011 | Signed | Bryan Harper | — | Washington Nationals | Washington Nationals signed LHP Bryan Harper. |
| Aug 15, 2011 | Signed | Matt Purke | — | Washington Nationals | Washington Nationals signed LHP Matt Purke. |
| Aug 15, 2011 | Signed | Brian Goodwin | — | Washington Nationals | Washington Nationals signed OF Brian Goodwin. |
| Aug 15, 2011 | Signed | Alex Meyer | — | Washington Nationals | Washington Nationals signed RHP Alex Meyer. |
| Aug 15, 2011 | Signed | Anthony Rendon | — | Washington Nationals | Washington Nationals signed 3B Anthony Rendon. |
| Aug 15, 2011 | Signed | Gerrit Cole | — | Pittsburgh Pirates | Pittsburgh Pirates signed RHP Gerrit Cole. |
| Aug 15, 2011 | Signed | Josh Bell | — | Pittsburgh Pirates | Pittsburgh Pirates signed OF Josh Bell. |
| Aug 15, 2011 | Signed | Taylor Jungmann | — | Milwaukee Brewers | Milwaukee Brewers signed RHP Taylor Jungmann. |
| Aug 15, 2011 | Signed | Jed Bradley | — | Milwaukee Brewers | Milwaukee Brewers signed LHP Jed Bradley. |
| Aug 15, 2011 | Signed | Chris McFarland | — | Milwaukee Brewers | Milwaukee Brewers signed SS Chris McFarland. |
| Aug 15, 2011 | Signed | Danny Hultzen | — | Seattle Mariners | Seattle Mariners signed LHP Danny Hultzen. |
| Aug 15, 2011 | Signed | Brad Miller | — | Seattle Mariners | Seattle Mariners signed SS Brad Miller. |
| Aug 15, 2011 | Signed | Carson Smith | — | Seattle Mariners | Seattle Mariners signed RHP Carson Smith. |
| Aug 15, 2011 | Signed | Cavan Cohoes | — | Seattle Mariners | Seattle Mariners signed OF Cavan Cohoes. |
| Aug 15, 2011 | Signed | Tyler Anderson | — | Colorado Rockies | Colorado Rockies signed LHP Tyler Anderson. |
| Aug 15, 2011 | Signed | Dylan Bundy | — | Baltimore Orioles | Baltimore Orioles signed RHP Dylan Bundy. |
| Aug 15, 2011 | Signed | Jason Esposito | — | Baltimore Orioles | Baltimore Orioles signed 3B Jason Esposito. |
| Aug 15, 2011 | Signed | Nicky Delmonico | — | Baltimore Orioles | Baltimore Orioles signed 3B Nick Delmonico. |
| Aug 15, 2011 | Signed | Joe Ross | — | San Diego Padres | San Diego Padres signed RHP Joe Ross. |
| Aug 15, 2011 | Signed | Michael Kelly | — | San Diego Padres | San Diego Padres signed RHP Michael Kelly. |
| Aug 15, 2011 | Signed | Austin Hedges | — | San Diego Padres | San Diego Padres signed C Austin Hedges. |
| Aug 15, 2011 | Signed | Burch Smith | — | San Diego Padres | San Diego Padres signed RHP Burch Smith. |
| Aug 15, 2011 | Signed | Brandon Nimmo | — | New York Mets | New York Mets signed OF Brandon Nimmo. |
| Aug 15, 2011 | Signed | Logan Verrett | — | New York Mets | New York Mets signed RHP Logan Verrett. |
| Aug 15, 2011 | Signed | Christian Montgomery | — | New York Mets | New York Mets signed RHP Christian Montgomery. |
| Aug 15, 2011 | Signed | Brad Marquez | — | New York Mets | New York Mets signed OF Bradley Marquez. |
| Aug 15, 2011 | Signed | Phillip Evans | — | New York Mets | New York Mets signed SS Phillip Evans. |
| Aug 15, 2011 | Signed | Taylor Guerrieri | — | Tampa Bay Rays | Tampa Bay Rays signed RHP Taylor Guerrieri. |
| Aug 15, 2011 | Signed | Mikie Mahtook | — | Tampa Bay Rays | Tampa Bay Rays signed OF Mikie Mahtook. |
| Aug 15, 2011 | Signed | Tyler Goeddel | — | Tampa Bay Rays | Tampa Bay Rays signed 3B Tyler Goeddel. |
| Aug 15, 2011 | Signed | Grayson Garvin | — | Tampa Bay Rays | Tampa Bay Rays signed LHP Grayson Garvin. |
| Aug 15, 2011 | Signed | Robert Stephenson | — | Cincinnati Reds | Cincinnati Reds signed RHP Robert Stephenson. |
| Aug 15, 2011 | Signed | Amir Garrett | — | Cincinnati Reds | Cincinnati Reds signed LHP Amir Garrett. |
| Aug 15, 2011 | Signed | Levi Michael | — | Minnesota Twins | Minnesota Twins signed SS Levi Michael. |
| Aug 15, 2011 | Signed | Travis Harrison | — | Minnesota Twins | Minnesota Twins signed OF Travis Harrison. |
| Aug 15, 2011 | Signed | Hudson Boyd | — | Minnesota Twins | Minnesota Twins signed RHP Hudson Boyd. |
| Aug 15, 2011 | Signed | Jason Wheeler | — | Minnesota Twins | Minnesota Twins signed LHP Jason Wheeler. |
| Aug 15, 2011 | Signed | Tyler Jones | — | Minnesota Twins | Minnesota Twins signed RHP Tyler Jones. |
| Aug 15, 2011 | Signed | Austin Malinowski | — | Minnesota Twins | Minnesota Twins signed LHP Austin Malinowski. |
| Aug 15, 2011 | Signed | Josh Burris | — | Minnesota Twins | Minnesota Twins signed RHP Josh Burris. |
| Aug 15, 2011 | Signed | Trent Higginbotham | — | Minnesota Twins | Minnesota Twins signed RHP Trent Higginbotham. |
| Aug 15, 2011 | Signed | Chris Mazza | — | Minnesota Twins | Minnesota Twins signed RHP Chris Mazza. |
| Aug 15, 2011 | Signed | José Fernández | — | Miami Marlins | Florida Marlins signed RHP Jose Fernandez. |
| Aug 15, 2011 | Signed | Matt Barnes | — | Boston Red Sox | Boston Red Sox signed RHP Matt Barnes. |
| Aug 15, 2011 | Signed | Blake Swihart | — | Boston Red Sox | Boston Red Sox signed C Blake Swihart. |
| Aug 15, 2011 | Signed | Henry Owens | — | Boston Red Sox | Boston Red Sox signed LHP Henry Owens. |
| Aug 15, 2011 | Signed | Jackie Bradley Jr. | — | Boston Red Sox | Boston Red Sox signed OF Jackie Bradley Jr.. |
| Aug 15, 2011 | Signed | Noé Ramirez | — | Boston Red Sox | Boston Red Sox signed RHP Noe Ramirez. |
| Aug 15, 2011 | Signed | Mookie Betts | — | Boston Red Sox | Boston Red Sox signed SS Mookie Betts. |
| Aug 15, 2011 | Signed | Cody Kukuk | — | Boston Red Sox | Boston Red Sox signed LHP Cody Kukuk. |
| Aug 15, 2011 | Released | Chris Ray | — | Seattle Mariners | Seattle Mariners released RHP Chris Ray. |
| Aug 15, 2011 | Released | Juan Jaime | — | Arizona Diamondbacks | Arizona Diamondbacks released RHP Juan Jaime. |
| Aug 15, 2011 | Signed | Will Locante | — | Arizona Diamondbacks | Arizona Diamondbacks signed LHP Will Locante. |
| Aug 15, 2011 | Signed | Joe Loftus | — | Arizona Diamondbacks | Arizona Diamondbacks signed OF Joe Loftus. |
| Aug 15, 2011 | Signed | Adam Conley | — | Miami Marlins | Florida Marlins signed LHP Adam Conley. |
| Aug 15, 2011 | Signed | Scott Barlow | — | Los Angeles Dodgers | Los Angeles Dodgers signed RHP Scott Barlow. |
| Aug 15, 2011 | Signed | Tyler Ogle | — | Los Angeles Dodgers | Los Angeles Dodgers signed C Tyler Ogle. |
| Aug 15, 2011 | Signed | Javier Báez | — | Chicago Cubs | Chicago Cubs signed SS Javier Baez. |
| Aug 15, 2011 | Signed | Daniel Vogelbach | — | Chicago Cubs | Chicago Cubs signed 1B Dan Vogelbach. |
| Aug 15, 2011 | Signed | Tony Zych | — | Chicago Cubs | Chicago Cubs signed RHP Tony Zych. |
| Aug 15, 2011 | Signed | Tayler Scott | — | Chicago Cubs | Chicago Cubs signed RHP Tayler Scott. |
| Aug 15, 2011 | Signed | Shawon Dunston Jr. | — | Chicago Cubs | Chicago Cubs signed OF Shawon Dunston. |
| Aug 15, 2011 | Signed | Dillon Maples | — | Chicago Cubs | Chicago Cubs signed RHP Dillon Maples. |
| Aug 15, 2011 | Signed | Mike Dennhardt | — | Cincinnati Reds | Cincinnati Reds signed RHP Mike Dennhardt. |
| Aug 15, 2011 | Signed | Tyler Gibson | — | Detroit Tigers | Detroit Tigers signed OF Tyler Gibson. |
| Aug 15, 2011 | Signed | Brett Harrison | — | Detroit Tigers | Detroit Tigers signed 3B Brett Harrison. |
| Aug 15, 2011 | Signed | Larry Greene | — | Philadelphia Phillies | Philadelphia Phillies signed OF Larry Greene. |
| Aug 15, 2011 | Signed | Roman Quinn | — | Philadelphia Phillies | Philadelphia Phillies signed SS Roman Quinn. |
| Aug 15, 2011 | Signed as free agent | Ramón Vázquez | — | Miami Marlins | Florida Marlins signed free agent 2B Ramon Vazquez to a minor league contract. |
| Aug 15, 2011 | Signed as free agent | Scott Proctor | — | New York Yankees | New York Yankees signed free agent RHP Scott Proctor to a minor league contract. |
| Aug 15, 2011 | Signed as free agent | Matt Rusch | — | Boston Red Sox | Boston Red Sox signed free agent RHP Matt Rusch to a minor league contract. |
| Aug 15, 2011 | Signed | Daniel Norris | — | Toronto Blue Jays | Toronto Blue Jays signed LHP Daniel Norris. |
| Aug 15, 2011 | Signed | Christian Lopes | — | Toronto Blue Jays | Toronto Blue Jays signed SS Christian Lopes. |
| Aug 15, 2011 | Signed | Matt Dean | — | Toronto Blue Jays | Toronto Blue Jays signed 3B Matt Dean. |
| Aug 15, 2011 | Signed as free agent | Ethan Cole | — | St. Louis Cardinals | St. Louis Cardinals signed free agent RHP Ethan Cole to a minor league contract. |
| Aug 15, 2011 | Signed | Mitch Walding | — | Philadelphia Phillies | Philadelphia Phillies signed SS Mitch Walding. |
| Aug 15, 2011 | Signed | Jesen Therrien | — | Philadelphia Phillies | Philadelphia Phillies signed RHP Jesen Therrien. |
| Aug 15, 2011 | Signed | Braden Shull | — | Philadelphia Phillies | Philadelphia Phillies signed LHP Braden Shull. |
| Aug 15, 2011 | Signed | Austin Wood | — | Los Angeles Angels | Los Angeles Angels signed RHP Austin Wood. |
| Aug 15, 2011 | Signed | Jordan Cote | — | New York Yankees | New York Yankees signed RHP Jordan Cote. |
| Aug 15, 2011 | Signed | Rookie Davis | — | New York Yankees | New York Yankees signed RHP Rookie Davis. |
| Aug 15, 2011 | Signed | Joey Maher | — | New York Yankees | New York Yankees signed RHP Joseph Maher. |
| Aug 15, 2011 | Signed | Jason McCracken | — | Baltimore Orioles | Baltimore Orioles signed RHP Jason McCracken. |
| Aug 15, 2011 | Signed | Andrew Susac | — | San Francisco Giants | San Francisco Giants signed C Andrew Susac. |
| Aug 15, 2011 | Signed | Josh Osich | — | San Francisco Giants | San Francisco Giants signed LHP Josh Osich. |
| Aug 15, 2011 | Signed | Ricky Oropesa | — | San Francisco Giants | San Francisco Giants signed 1B Ricky Oropesa. |
| Aug 15, 2011 | Signed | John Andreoli | — | Chicago Cubs | Chicago Cubs signed OF John Andreoli. |
| Aug 15, 2011 | Signed | Zach Davies | — | Baltimore Orioles | Baltimore Orioles signed RHP Zach Davies. |
| Aug 15, 2011 | Signed | Joe Biagini | — | San Francisco Giants | San Francisco Giants signed Joe Biagini. |
| Aug 15, 2011 | Signed | Mitchell Beacom | — | San Francisco Giants | San Francisco Giants signed LHP Mitchell Beacom. |
| Aug 15, 2011 | Signed | Cody Livesay | — | Atlanta Braves | Atlanta Braves signed OF Cody Livesay. |
| Aug 15, 2011 | Signed | Carl Edwards Jr. | — | Texas Rangers | Texas Rangers signed RHP C.J. Edwards. |
| Aug 14, 2011 | Released | Wes Helms | — | Miami Marlins | Florida Marlins released 3B Wes Helms. |
| Aug 14, 2011 | Signed | John Stilson | — | Toronto Blue Jays | Toronto Blue Jays signed RHP John Stilson. |
| Aug 14, 2011 | Signed | Anthony DeSclafani | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Anthony DeSclafani. |
| Aug 14, 2011 | Signed | Mark Biggs | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Mark Biggs. |
| Aug 14, 2011 | Signed | Kyle Winkler | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP Kyle Winkler. |
| Aug 14, 2011 | Signed | Dwight Smith Jr. | — | Toronto Blue Jays | Toronto Blue Jays signed OF Dwight Smith, Jr.. |
| Aug 14, 2011 | Signed | Ryan Merritt | — | Cleveland Guardians | Cleveland Indians signed LHP Ryan Merritt. |
| Aug 14, 2011 | Signed | Garrett Schlecht | — | Chicago Cubs | Chicago Cubs signed OF Garrett Schlecht. |
| Aug 14, 2011 | Signed | Mike Clevinger | — | Los Angeles Angels | Los Angeles Angels signed Mike Clevinger. |
| Aug 14, 2011 | Signed | Brett Lee | — | Minnesota Twins | Minnesota Twins signed LHP Brett Lee. |
| Aug 14, 2011 | Signed as free agent | Austin Urban | — | Chicago Cubs | Chicago Cubs signed free agent RHP Austin Urban to a minor league contract. |
| Aug 13, 2011 | Signed | Candon Myles | — | Pittsburgh Pirates | Pittsburgh Pirates signed CF Candon Myles. |
| Aug 13, 2011 | Signed as free agent | Lyle Overbay | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent 1B Lyle Overbay. |
| Aug 13, 2011 | Signed | Tyler Marlette | — | Seattle Mariners | Seattle Mariners signed C Tyler Marlette. |
| Aug 13, 2011 | Signed | Eric Haase | — | Cleveland Guardians | Cleveland Indians signed C Eric Haase. |
| Aug 13, 2011 | Signed | Zack MacPhee | — | Cleveland Guardians | Cleveland Indians signed 2B Zack MacPhee. |
| Aug 13, 2011 | Signed | Jorge López | — | Milwaukee Brewers | Milwaukee Brewers signed RHP Jorge Lopez. |
| Aug 13, 2011 | Signed as free agent | Vince Bongiovanni | — | Toronto Blue Jays | Toronto Blue Jays signed free agent RHP Vince Bongiovanni to a minor league contract. |
| Aug 13, 2011 | Signed | John Brebbia | — | New York Yankees | New York Yankees signed RHP John Brebbia. |
| Aug 13, 2011 | Signed | Sal Romano | — | Cincinnati Reds | Cincinnati Reds signed RHP Sal Romano. |
| Aug 12, 2011 | Signed | Jacob Anderson | — | Toronto Blue Jays | Toronto Blue Jays signed OF Jake Anderson. |
| Aug 12, 2011 | Signed | Brady Dragmire | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Brady Dragmire. |
| Aug 12, 2011 | Signed | Derrick Loveless | — | Toronto Blue Jays | Toronto Blue Jays signed OF Derrick Loveless. |
| Aug 12, 2011 | Signed | B.A. Vollmuth | — | Athletics | Oakland Athletics signed 3B B.A. Vollmuth. |
| Aug 12, 2011 | Signed | Chris Reed | — | Los Angeles Dodgers | Los Angeles Dodgers signed LHP Chris Reed. |
| Aug 12, 2011 | Signed as free agent | Arthur Rhodes | — | St. Louis Cardinals | St. Louis Cardinals signed free agent LHP Arthur Rhodes. |
| Aug 12, 2011 | Signed as free agent | Jack Cust | — | Philadelphia Phillies | Philadelphia Phillies signed free agent OF Jack Cust to a minor league contract. |
| Aug 12, 2011 | Signed | Chris Costantino | — | St. Louis Cardinals | St. Louis Cardinals signed RHP Chris Costantino. |
| Aug 12, 2011 | Signed | Cody Anderson | — | Cleveland Guardians | Cleveland Indians signed RHP Cody Anderson. |
| Aug 12, 2011 | Signed | T.J. Hose | — | Boston Red Sox | Boston Red Sox signed RHP T.J. Hose. |
| Aug 12, 2011 | Signed | Johnathan Knight | — | Philadelphia Phillies | Philadelphia Phillies signed OF Johnathan Knight. |
| Aug 12, 2011 | Signed | Daniel Lockhart | — | Chicago Cubs | Chicago Cubs signed SS Danny Lockhart. |
| Aug 12, 2011 | Signed | Rock Shoulders | — | Chicago Cubs | Chicago Cubs signed 1B Rock Shoulders. |
| Aug 12, 2011 | Signed | Shawn Morimando | — | Cleveland Guardians | Cleveland Indians signed LHP Shawn Morimando. |
| Aug 12, 2011 | Signed as free agent | Roberto Tovar | — | Kansas City Royals | Kansas City Royals signed free agent C Roberto Tovar to a minor league contract. |
| Aug 12, 2011 | Signed as free agent | Yordanys Perez | — | Cincinnati Reds | Cincinnati Reds signed free agent OF Yordanys Perez to a minor league contract. |
| Aug 12, 2011 | Signed | Tom Robson | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Tom Robson. |
| Aug 11, 2011 | Signed | Ken Giles | — | Philadelphia Phillies | Philadelphia Phillies signed RHP Ken Giles. |
| Aug 11, 2011 | Signed as free agent | Casey Barnes | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Casey Barnes to a minor league contract. |
| Aug 11, 2011 | Signed | Sam Gaviglio | — | St. Louis Cardinals | St. Louis Cardinals signed RHP Sam Gaviglio. |
| Aug 11, 2011 | Signed | Hayden Sharp | — | New York Yankees | New York Yankees signed RHP Hayden Sharp. |
| Aug 11, 2011 | Signed | Adam Smith | — | New York Yankees | New York Yankees signed RHP Adam Smith. |
| Aug 11, 2011 | Signed | Jackson Laumann | — | Atlanta Braves | Atlanta Braves signed 1B Jackson Laumann. |
| Aug 11, 2011 | Signed | Luis Merejo | — | Atlanta Braves | Atlanta Braves signed LHP Luis Merejo. |
| Aug 10, 2011 | Signed | Carter Capps | — | Seattle Mariners | Seattle Mariners signed RHP Carter Capps. |
| Aug 10, 2011 | Released | Kyle Davies | — | Kansas City Royals | Kansas City Royals released RHP Kyle Davies. |
| Aug 10, 2011 | Released | Scott Proctor | — | Atlanta Braves | Atlanta Braves released RHP Scott Proctor. |
| Aug 10, 2011 | Signed as free agent | Kevin Millwood | — | Colorado Rockies | Colorado Rockies signed free agent RHP Kevin Millwood. |
| Aug 10, 2011 | Signed as free agent | Kirby Young | — | Los Angeles Angels | Los Angeles Angels signed free agent SS Kirby Young to a minor league contract. |
| Aug 10, 2011 | Signed as free agent | Mark Williams | — | Milwaukee Brewers | Milwaukee Brewers signed free agent RHP Mark Williams to a minor league contract. |
| Aug 10, 2011 | Signed | Robby Scott | — | Boston Red Sox | Boston Red Sox signed LHP Robby Scott. |
| Aug 10, 2011 | Signed | Alex Constanza | — | San Diego Padres | San Diego Padres signed LHP Alexander Constanza. |
| Aug 10, 2011 | Signed | Angel Montilla | — | Los Angeles Angels | Los Angeles Angels signed CF Angel Montilla. |
| Aug 10, 2011 | Signed as free agent | Adalberto Mondesi | — | Kansas City Royals | Kansas City Royals signed free agent SS Raul Adalberto Mondesi to a minor league contract. |
| Aug 10, 2011 | Signed as free agent | Harol Rosario | — | Kansas City Royals | Kansas City Royals signed free agent RHP Harol Rosario to a minor league contract. |
| Aug 10, 2011 | Signed as free agent | Cesar Melendez | — | Kansas City Royals | Kansas City Royals signed free agent RHP Cesar Melendez to a minor league contract. |
| Aug 10, 2011 | Signed as free agent | Domingo Sanchez | — | St. Louis Cardinals | St. Louis Cardinals signed free agent OF Domingo Sanchez to a minor league contract. |
| Aug 10, 2011 | Signed as free agent | Ethan Elias | — | Chicago Cubs | Chicago Cubs signed free agent RHP Ethan Elias to a minor league contract. |
| Aug 10, 2011 | Signed as free agent | Matt Wilson | — | Baltimore Orioles | Baltimore Orioles signed free agent LHP Matt Wilson to a minor league contract. |
| Aug 9, 2011 | Signed | Brian Ruiz | — | Cleveland Guardians | Cleveland Indians signed OF Brian Ruiz. |
| Aug 9, 2011 | Signed | Luke Guarnaccia | — | Seattle Mariners | Seattle Mariners signed C Luke Guarnaccia. |
| Aug 9, 2011 | Signed | Cory Scammell | — | Seattle Mariners | Seattle Mariners signed OF Cory Scammell. |
| Aug 9, 2011 | Signed | Matt Koch | — | Minnesota Twins | Minnesota Twins signed C Matt Koch. |
| Aug 9, 2011 | Signed | James McCann | — | Detroit Tigers | Detroit Tigers signed C James McCann. |
| Aug 9, 2011 | Signed | Navery Moore | — | Atlanta Braves | Atlanta Braves signed RHP Navery Moore. |
| Aug 9, 2011 | Signed as free agent | Silvino Bracho | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Silvino Bracho to a minor league contract. |
| Aug 9, 2011 | Signed as free agent | Armando Echenique | — | Washington Nationals | Washington Nationals signed free agent OF Armando Echenique to a minor league contract. |
| Aug 8, 2011 | Released | Arthur Rhodes | — | Texas Rangers | Texas Rangers released LHP Arthur Rhodes. |
| Aug 8, 2011 | Released | Michael Crotta | — | Pittsburgh Pirates | Pittsburgh Pirates released RHP Michael Crotta. |
| Aug 8, 2011 | Signed as free agent | Jiandido Tromp | — | Philadelphia Phillies | Philadelphia Phillies signed free agent OF Jiandido Tromp to a minor league contract. |
| Aug 7, 2011 | Signed as free agent | Kenen Bailli | — | Toronto Blue Jays | Toronto Blue Jays signed free agent OF Kenen Bailli to a minor league contract. |
| Aug 7, 2011 | Signed | Casey McElroy | — | San Diego Padres | San Diego Padres signed SS Casey McElroy. |
| Aug 7, 2011 | Signed as free agent | Cody Evans | — | Los Angeles Angels | Los Angeles Angels signed free agent RHP Cody Evans to a minor league contract. |
| Aug 7, 2011 | Signed | Carlos Severino | — | Chicago Cubs | Chicago Cubs signed RHP Carlos Severino. |
| Aug 7, 2011 | Signed as free agent | Clayton Schulz | — | Kansas City Royals | Kansas City Royals signed free agent LHP Clayton Schulz to a minor league contract. |
| Aug 6, 2011 | Signed | Tyler Glasnow | — | Pittsburgh Pirates | Pittsburgh Pirates signed RHP Tyler Glasnow. |
| Aug 6, 2011 | Signed | Rodarrick Jones | — | Pittsburgh Pirates | Pittsburgh Pirates signed OF Rodarrick Jones. |
| Aug 6, 2011 | Signed | Michael Reed | — | Milwaukee Brewers | Milwaukee Brewers signed OF Michael Reed. |
| Aug 6, 2011 | Signed | John Ruettiger | — | Baltimore Orioles | Baltimore Orioles signed OF John Ruettiger. |
| Aug 6, 2011 | Signed | Yhoxian Medina | — | Cleveland Guardians | Cleveland Indians signed SS Yhoxian Medina. |
| Aug 5, 2011 | Released | Lyle Overbay | — | Pittsburgh Pirates | Pittsburgh Pirates released 1B Lyle Overbay. |
| Aug 5, 2011 | Signed | Brandon Loy | — | Detroit Tigers | Detroit Tigers signed SS Brandon Loy. |
| Aug 5, 2011 | Signed | John Gant | — | New York Mets | New York Mets signed RHP John Gant. |
| Aug 5, 2011 | Signed | Chris Devenski | — | Chicago White Sox | Chicago White Sox signed RHP Chris Devenski. |
| Aug 5, 2011 | Signed | Steven Neff | — | San Francisco Giants | San Francisco Giants signed LHP Steven Neff. |
| Aug 5, 2011 | Signed | Chad Smith | — | Detroit Tigers | Detroit Tigers signed RHP Chad Smith. |
| Aug 5, 2011 | Signed as free agent | Jeily Arias | — | Texas Rangers | Texas Rangers signed free agent RHP Jeily Arias to a minor league contract. |
| Aug 5, 2011 | Signed as free agent | Alberto Casanas | — | Tampa Bay Rays | Tampa Bay Rays signed free agent RHP Alberto Casanas to a minor league contract. |
| Aug 5, 2011 | Signed as free agent | Juan Martinez | — | Cincinnati Reds | Cincinnati Reds signed free agent LHP Juan Martinez to a minor league contract. |
| Aug 5, 2011 | Signed as free agent | Jose Fernandez | — | Cincinnati Reds | Cincinnati Reds signed free agent OF Jose Fernandez to a minor league contract. |
| Aug 5, 2011 | Signed | Justin Marra | — | Chicago Cubs | Chicago Cubs signed C Justin Marra. |
| Aug 5, 2011 | Signed as free agent | Alan Ramirez | — | New York Yankees | New York Yankees signed free agent OF Alan Ramirez to a minor league contract. |
| Aug 4, 2011 | Released | Jack Cust | — | Seattle Mariners | Seattle Mariners released DH Jack Cust. |
| Aug 4, 2011 | Released | Jose Casilla | — | San Francisco Giants | San Francisco Giants released RHP Jose Casilla. |
| Aug 4, 2011 | Signed as free agent | J.J. Leaper | — | Athletics | Oakland Athletics signed free agent RHP J.J. Leaper to a minor league contract. |
| Aug 4, 2011 | Signed as free agent | Chad Gaudin | — | Toronto Blue Jays | Toronto Blue Jays signed free agent RHP Chad Gaudin to a minor league contract. |
| Aug 4, 2011 | Signed as free agent | Brett Carroll | — | Boston Red Sox | Boston Red Sox signed free agent RF Brett Carroll to a minor league contract. |
| Aug 4, 2011 | Signed as free agent | Willie Eyre | — | Baltimore Orioles | Baltimore Orioles signed free agent RHP Willie Eyre to a minor league contract. |
| Aug 4, 2011 | Signed | Dillon Thomas | — | Colorado Rockies | Colorado Rockies signed LF Dillon Thomas. |
| Aug 4, 2011 | Signed | Drew Stiner | — | San Francisco Giants | San Francisco Giants signed C Drew Stiner. |
| Aug 4, 2011 | Signed as free agent | Roni Maestre | — | Tampa Bay Rays | Tampa Bay Rays signed free agent OF Roni Maestre to a minor league contract. |
| Aug 4, 2011 | Signed as free agent | Leudy Molina | — | Miami Marlins | Florida Marlins signed free agent SS Leudy Molina to a minor league contract. |
| Aug 3, 2011 | Signed | Jake Burnette | — | Pittsburgh Pirates | Pittsburgh Pirates signed RHP Jake Burnette. |
| Aug 3, 2011 | Signed as free agent | Chris Lubanski | — | Philadelphia Phillies | Philadelphia Phillies signed free agent LF Chris Lubanski to a minor league contract. |
| Aug 3, 2011 | Signed as free agent | Brent Clevlen | — | Philadelphia Phillies | Philadelphia Phillies signed free agent OF Brent Clevlen to a minor league contract. |
| Aug 3, 2011 | Signed as free agent | Carlos Sosa | — | San Diego Padres | San Diego Padres signed free agent OF Carlos Sosa to a minor league contract. |
| Aug 3, 2011 | Signed as free agent | Drew Macias | — | San Diego Padres | San Diego Padres signed free agent OF Drew Macias to a minor league contract. |
| Aug 3, 2011 | Signed | Adam Heisler | — | Chicago White Sox | Chicago White Sox signed CF Adam Heisler. |
| Aug 3, 2011 | Signed | Ryan Rieger | — | Miami Marlins | Florida Marlins signed 1B Ryan Rieger. |
| Aug 3, 2011 | Signed | Dorssys Paulino | — | Cleveland Guardians | Cleveland Indians signed SS Dorssys Paulino. |
| Aug 3, 2011 | Signed as free agent | Carlos Vaamonde | — | Tampa Bay Rays | Tampa Bay Rays signed free agent OF Carlos Vaamonde to a minor league contract. |
| Aug 3, 2011 | Signed | Taylor Wrenn | — | Cincinnati Reds | Cincinnati Reds signed 2B Taylor Wrenn. |
| Aug 2, 2011 | Signed | Keith Bilodeau | — | San Francisco Giants | San Francisco Giants signed RHP Keith Bilodeau. |
| Aug 2, 2011 | Signed | Drew Gagnier | — | Athletics | Oakland Athletics signed RHP Drew Gagnier. |
| Aug 2, 2011 | Signed as free agent | Lars Huijer | — | Seattle Mariners | Seattle Mariners signed free agent Lars Huijer. |
| Aug 2, 2011 | Signed as free agent | Alex Caldera | — | Miami Marlins | Florida Marlins signed free agent RHP Alex Caldera to a minor league contract. |
| Aug 2, 2011 | Signed as free agent | James Leverton | — | Miami Marlins | Florida Marlins signed free agent LHP James Leverton to a minor league contract. |
| Aug 2, 2011 | Signed | Matt Wisler | — | San Diego Padres | San Diego Padres signed RHP Matt Wisler. |
| Aug 2, 2011 | Signed | Riccio Torrez | — | Tampa Bay Rays | Tampa Bay Rays signed 3B Riccio Torrez. |
| Aug 2, 2011 | Signed as free agent | Pedro Cuello | — | Miami Marlins | Florida Marlins signed free agent RHP Pedro Cuello to a minor league contract. |
| Aug 2, 2011 | Signed as free agent | Reinaldo Cepin | — | Kansas City Royals | Kansas City Royals signed free agent LHP Reinaldo Cepin to a minor league contract. |
| Aug 2, 2011 | Signed | Michael Jensen | — | Chicago Cubs | Chicago Cubs signed RHP Michael Jensen. |
| Aug 2, 2011 | Signed | Ray Black | — | San Francisco Giants | San Francisco Giants signed RHP Raymond Black. |
| Aug 2, 2011 | Signed as free agent | Junior Estrella | — | Boston Red Sox | Boston Red Sox signed free agent 2B Junior Estrella to a minor league contract. |
| Aug 2, 2011 | Signed as free agent | Rochendrick Alexander | — | Baltimore Orioles | Baltimore Orioles signed free agent OF Rochendrick Alexander to a minor league contract. |
| Aug 2, 2011 | Signed as free agent | Cristian Alvarado | — | Baltimore Orioles | Baltimore Orioles signed free agent RHP Cristian Alvarado to a minor league contract. |
| Aug 2, 2011 | Signed as free agent | Jacniel Cabrera | — | Baltimore Orioles | Baltimore Orioles signed free agent SS Jacniel Cabrera to a minor league contract. |
| Aug 2, 2011 | Signed as free agent | Brailyn Duran | — | Baltimore Orioles | Baltimore Orioles signed free agent OF Brailyn Duran to a minor league contract. |
| Aug 2, 2011 | Signed as free agent | Elvis Duran | — | Baltimore Orioles | Baltimore Orioles signed free agent RHP Elvis Duran to a minor league contract. |
| Aug 2, 2011 | Signed as free agent | Daniel Fajardo | — | Baltimore Orioles | Baltimore Orioles signed free agent C Daniel Fajardo to a minor league contract. |
| Aug 2, 2011 | Signed as free agent | Wendell Floranus | — | Baltimore Orioles | Baltimore Orioles signed free agent RHP Wendell Floranus to a minor league contract. |
| Aug 2, 2011 | Signed as free agent | Francisco Jimenez | — | Baltimore Orioles | Baltimore Orioles signed free agent RHP Francisco Jimenez to a minor league contract. |
| Aug 2, 2011 | Signed as free agent | Gelfry Perez | — | Baltimore Orioles | Baltimore Orioles signed free agent 1B Gelfry Perez to a minor league contract. |
| Aug 1, 2011 | Released | Matt Stairs | — | Washington Nationals | Washington Nationals released 1B Matt Stairs. |
| Aug 1, 2011 | Released | Danys Baez | — | Philadelphia Phillies | Philadelphia Phillies released RHP Danys Baez. |
| Aug 1, 2011 | Signed | Cam Gallagher | — | Kansas City Royals | Kansas City Royals signed C Cameron Gallagher. |
| Aug 1, 2011 | Released | Justin Duchscherer | — | Baltimore Orioles | Baltimore Orioles released RHP Justin Duchscherer. |
| Aug 1, 2011 | Signed as free agent | Ozzie Chavez | — | Philadelphia Phillies | Philadelphia Phillies signed free agent SS Ozzie Chavez to a minor league contract. |
| Aug 1, 2011 | Signed as free agent | Chris Cody | — | Atlanta Braves | Atlanta Braves signed free agent LHP Chris Cody to a minor league contract. |
| Aug 1, 2011 | Signed as free agent | Christian Garcia | — | Washington Nationals | Washington Nationals signed free agent RHP Christian Garcia to a minor league contract. |
| Aug 1, 2011 | Signed as free agent | Cyle Hankerd | — | Philadelphia Phillies | Philadelphia Phillies signed free agent OF Cyle Hankerd to a minor league contract. |
| Aug 1, 2011 | Signed as free agent | Jose Regalado | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent RHP Jose Regalado to a minor league contract. |
| Aug 1, 2011 | Signed as free agent | Carlos Valdez | — | San Francisco Giants | San Francisco Giants signed free agent OF Carlos Valdez to a minor league contract. |
| Aug 1, 2011 | Signed as free agent | Scotty Walker | — | San Francisco Giants | San Francisco Giants signed free agent LHP Scotty Walker to a minor league contract. |
| Aug 1, 2011 | Signed as free agent | Victor Lozada | — | New York Yankees | New York Yankees signed free agent RHP Victor Lozada to a minor league contract. |
| Jul 31, 2011 | Trade | Tommy Hunter | Texas Rangers | Baltimore Orioles | Baltimore Orioles traded RHP Koji Uehara to Texas Rangers for 1B Chris Davis and RHP Tommy Hunter. |
| Jul 31, 2011 | Trade | Orlando Cabrera | Cleveland Guardians | San Francisco Giants | Cleveland Indians traded 2B Orlando Cabrera to San Francisco Giants for LF Thomas Neal. |
| Jul 31, 2011 | Trade | Derrek Lee | Baltimore Orioles | Pittsburgh Pirates | Baltimore Orioles Traded 1B Derrek Lee to Pittsburgh Pirates and Bradenton Marauders Traded 1B Aaron Baker to Frederick Keys. |
| Jul 31, 2011 | Trade | Jordan Schafer | Atlanta Braves | Houston Astros | Houston Astros Traded CF Michael Bourn to Atlanta Braves; Atlanta Braves Traded CF Jordan Schafer and RHP Juan Abreu to Houston Astros and Mississippi Braves Traded RHP Paul Clemens and LHP Brett Oberholtzer to Corpus Christi Hooks. |
| Jul 31, 2011 | Trade | Rafael Furcal | Los Angeles Dodgers | St. Louis Cardinals | Springfield Cardinals Traded RF Alex Castellanos to Chattanooga Lookouts and Los Angeles Dodgers Traded cash and SS Rafael Furcal to St. Louis Cardinals. |
| Jul 31, 2011 | Trade | Brad Ziegler | Athletics | Arizona Diamondbacks | Oakland Athletics traded RHP Brad Ziegler to Arizona Diamondbacks for 1B Brandon Allen and Jordan Norberto. |
| Jul 31, 2011 | Trade | Mike Adams | San Diego Padres | Texas Rangers | San Diego Padres Traded RHP Mike Adams to Texas Rangers and Frisco RoughRiders Traded LHP Robbie Erlin and RHP Joe Wieland to San Antonio Missions. |
| Jul 31, 2011 | Trade | Ryan Ludwick | San Diego Padres | Pittsburgh Pirates | San Diego Padres traded LF Ryan Ludwick to Pittsburgh Pirates. |
| Jul 31, 2011 | Trade | Alex White | Cleveland Guardians | Colorado Rockies | Colorado Rockies Traded RHP Ubaldo Jimenez to Cleveland Indians; Cleveland Indians Traded RHP Alex White to Colorado Rockies and Akron Aeros Traded RHP Joe Gardner and RF Matt McBride to Tulsa Drillers. |
| Jul 31, 2011 | Trade | Trayvon Robinson | Los Angeles Dodgers | Boston Red Sox | Los Angeles Dodgers Traded Trayvon Robinson to Boston Red Sox; Portland Sea Dogs Traded C Tim Federowicz and RHP Stephen Fife to Chattanooga Lookouts and Greenville Drive Traded RHP Juan Rodriguez to Great Lakes Loons. |
| Jul 31, 2011 | Trade | Trayvon Robinson | Boston Red Sox | Seattle Mariners | Seattle Mariners Traded LHP Erik Bedard to Boston Red Sox; Tacoma Rainiers Traded RHP Josh Fields to Pawtucket Red Sox; Boston Red Sox Traded CF Trayvon Robinson to Seattle Mariners and Portland Sea Dogs Traded OF Chih-Hsien Chiang to Jackson Generals. |
| Jul 31, 2011 | Signed as free agent | Juan Ramon Noriega | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent RHP Juan Ramon Noriega to a minor league contract. |
| Jul 31, 2011 | Signed | Cody Koback | — | Boston Red Sox | Boston Red Sox signed OF Cody Koback. |
| Jul 31, 2011 | Signed as free agent | Argenis Reyes | — | Cleveland Guardians | Cleveland Indians signed free agent 2B Argenis Reyes to a minor league contract. |
| Jul 31, 2011 | Signed as free agent | Brian Stokes | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Brian Stokes to a minor league contract. |
| Jul 30, 2011 | Trade | Hunter Pence | Houston Astros | Philadelphia Phillies | Houston Astros Traded RF Hunter Pence to Philadelphia Phillies; Clearwater Threshers Traded 1B Jonathan Singleton and RHP Jarred Cosart to Lancaster JetHawks and Reading Phillies Traded RHP Josh Zeid to Corpus Christi Hooks. |
| Jul 30, 2011 | Trade | Jerry Hairston Jr. | Washington Nationals | Milwaukee Brewers | Huntsville Stars Traded RF Erik Komatsu to Harrisburg Senators and Washington Nationals Traded SS Jerry Hairston to Milwaukee Brewers. |
| Jul 30, 2011 | Trade | Doug Fister | Seattle Mariners | Detroit Tigers | Seattle Mariners Traded RHP David Pauley and RHP Doug Fister to Detroit Tigers; Detroit Tigers Traded Player To Be Named Later, RF Casper Wells and LHP Charlie Furbush to Seattle Mariners and Erie SeaWolves Traded 3B Francisco Martinez to Jackson Generals. |
| Jul 30, 2011 | Trade | Mike Aviles | Kansas City Royals | Boston Red Sox | Salem Red Sox Traded RHP Kendal Volz to Wilmington Blue Rocks; Boston Red Sox Traded 3B Yamaico Navarro to Kansas City Royals and Kansas City Royals Traded SS Mike Aviles to Boston Red Sox. |
| Jul 30, 2011 | Trade | Jason Marquis | Washington Nationals | Arizona Diamondbacks | South Bend Silver Hawks Traded SS Zach Walters to Potomac Nationals and Washington Nationals Traded RHP Jason Marquis to Arizona Diamondbacks. |
| Jul 30, 2011 | Signed as free agent | Jorge Cantu | — | Colorado Rockies | Colorado Rockies signed free agent 1B Jorge Cantu to a minor league contract. |
| Jul 30, 2011 | Signed | John Alexander | — | Tampa Bay Rays | Tampa Bay Rays signed 1B John Alexander. |
| Jul 29, 2011 | Signed | Dustin Kellogg | — | Houston Astros | Houston Astros signed RHP Dustin Kellogg. |
| Jul 29, 2011 | Signed | Steve Selsky | — | Cincinnati Reds | Cincinnati Reds signed OF Steve Selsky. |
| Jul 29, 2011 | Signed | Tyler Williams | — | Chicago White Sox | Chicago White Sox signed 3B Tyler Williams. |
| Jul 29, 2011 | Signed as free agent | Scott Munter | — | San Francisco Giants | San Francisco Giants signed free agent RHP Scott Munter to a minor league contract. |
| Jul 29, 2011 | Signed | Brandon Parrent | — | Chicago White Sox | Chicago White Sox signed LHP Brandon Parrent. |
| Jul 29, 2011 | Signed | Patrick Reyes | — | Pittsburgh Pirates | Pittsburgh Pirates signed C Patrick Reyes. |
| Jul 29, 2011 | Signed as free agent | Blake Gailen | — | Los Angeles Angels | Los Angeles Angels signed free agent OF Blake Gailen to a minor league contract. |
| Jul 29, 2011 | Signed | Carlos Encarnacion | — | Cincinnati Reds | Cincinnati Reds signed RHP Carlos Encarnacion. |
| Jul 29, 2011 | Signed | Francisco Miguel | — | Cleveland Guardians | Cleveland Indians signed OF Francisco Miguel. |
| Jul 28, 2011 | Trade | Carlos Beltrán | New York Mets | San Francisco Giants | New York Mets Traded RF Carlos Beltran to San Francisco Giants and San Jose Giants Traded RHP Zack Wheeler to St. Lucie Mets. |
| Jul 28, 2011 | Trade | Kosuke Fukudome | Chicago Cubs | Cleveland Guardians | Chicago Cubs Traded RF Kosuke Fukudome to Cleveland Indians; Kinston Indians Traded RF Abner Abreu to Daytona Cubs and Columbus Clippers Traded RHP Carlton Smith to Iowa Cubs. |
| Jul 28, 2011 | Signed | Trey Martin | — | Chicago Cubs | Chicago Cubs signed CF Trey Martin. |
| Jul 28, 2011 | Signed | Cody Davis | — | Washington Nationals | Washington Nationals signed RHP Cody Davis. |
| Jul 28, 2011 | Signed | Bryce Mosier | — | Chicago White Sox | Chicago White Sox signed C Bryce Mosier. |
| Jul 28, 2011 | Signed | Bryson Smith | — | Cincinnati Reds | Cincinnati Reds signed OF Bryson Smith. |
| Jul 28, 2011 | Signed | Bubba Jones | — | New York Yankees | New York Yankees signed 1B Bubba Jones. |
| Jul 28, 2011 | Signed | Charlie Lowell | — | Miami Marlins | Florida Marlins signed LHP Charlie Lowell. |
| Jul 28, 2011 | Signed | Christopher Bostick | — | Athletics | Oakland Athletics signed Chris Bostick. |
| Jul 28, 2011 | Signed as free agent | Jorge Celis | — | New York Mets | New York Mets signed free agent LHP Jorge Celis to a minor league contract. |
| Jul 27, 2011 | Signed | Jeremy Gabryszwski | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Jeremy Gabryszwski. |
| Jul 27, 2011 | Signed | Andy Burns | — | Toronto Blue Jays | Toronto Blue Jays signed SS Andy Burns. |
| Jul 27, 2011 | Signed | Peter Mooney | — | Toronto Blue Jays | Toronto Blue Jays signed SS Peter Mooney. |
| Jul 27, 2011 | Trade | Zach Stewart | Toronto Blue Jays | Chicago White Sox | Toronto Blue Jays traded RHP Jason Frasor and RHP Zach Stewart to Chicago White Sox for RHP Edwin Jackson and 3B Mark Teahen. |
| Jul 27, 2011 | Trade | Brian Tallet | St. Louis Cardinals | Toronto Blue Jays | St. Louis Cardinals traded CF Colby Rasmus, LHP Trever Miller, LHP Brian Tallet and RHP P.J. Walters to Toronto Blue Jays for RHP Edwin Jackson, Octavio Dotel, Marc Rzepczynski and Corey Patterson. |
| Jul 27, 2011 | Trade | Michael Restovich | Chicago White Sox | Arizona Diamondbacks | Chicago White Sox traded Michael Restovich to Arizona Diamondbacks. |
| Jul 27, 2011 | Signed as free agent | Wily Mo Peña | — | Seattle Mariners | Seattle Mariners signed free agent LF Wily Mo Pena to a minor league contract. |
| Jul 27, 2011 | Trade | Wil Nieves | Milwaukee Brewers | Atlanta Braves | Milwaukee Brewers traded C Wil Nieves to Atlanta Braves. |
| Jul 27, 2011 | Signed | Corey Williams | — | Minnesota Twins | Minnesota Twins signed LHP Corey Williams. |
| Jul 27, 2011 | Signed | Junior Geraldo | — | Washington Nationals | Washington Nationals signed SS Junior Geraldo. |
| Jul 27, 2011 | Signed as free agent | Carlos Figueroa | — | Chicago Cubs | Chicago Cubs signed free agent IF Carlos Figueroa to a minor league contract. |
| Jul 27, 2011 | Signed | Arnaldo Calero | — | Chicago Cubs | Chicago Cubs signed OF Arnaldo Calero. |
| Jul 27, 2011 | Signed as free agent | Dave Jensen | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent LHP Dave Jensen to a minor league contract. |
| Jul 27, 2011 | Signed | Nick Moore | — | Boston Red Sox | Boston Red Sox signed 3B Nick Moore. |
| Jul 27, 2011 | Signed as free agent | Chris Pieters | — | Chicago Cubs | Chicago Cubs signed free agent LHP Chris Pieters to a minor league contract. |
| Jul 27, 2011 | Signed as free agent | Darrel Leiva | — | Atlanta Braves | Atlanta Braves signed free agent RHP Darrel Leiva to a minor league contract. |
| Jul 26, 2011 | Trade | Jonny Gomes | Cincinnati Reds | Washington Nationals | Cincinnati Reds Traded LF Jonny Gomes to Washington Nationals; Hagerstown Suns Traded LHP Chris Manno to Dayton Dragons and Harrisburg Senators Traded OF Bill Rhinehart to Carolina Mudcats. |
| Jul 26, 2011 | Signed as free agent | Brett Zawacki | — | Miami Marlins | Florida Marlins signed free agent RHP Brett Zawacki to a minor league contract. |
| Jul 26, 2011 | Signed as free agent | Justin Phillabaum | — | Toronto Blue Jays | Toronto Blue Jays signed free agent RHP Justin Phillabaum to a minor league contract. |
| Jul 26, 2011 | Signed | Nick Mutz | — | Los Angeles Angels | Los Angeles Angels signed RHP Nick Mutz. |
| Jul 26, 2011 | Signed | Alexis Campos | — | Los Angeles Angels | Los Angeles Angels signed RHP Alexis Campos. |
| Jul 26, 2011 | Signed as free agent | Casey Edelbrock | — | Kansas City Royals | Kansas City Royals signed free agent RHP Casey Edelbrock to a minor league contract. |
| Jul 26, 2011 | Signed | Johnny Eierman | — | Tampa Bay Rays | Tampa Bay Rays signed SS Johnny Eierman. |
| Jul 26, 2011 | Signed | Jordan Weems | — | Boston Red Sox | Boston Red Sox signed C Jordan Weems. |
| Jul 26, 2011 | Signed as free agent | Alberto Velasquez | — | Seattle Mariners | Seattle Mariners signed free agent 1B Alberto Velasquez to a minor league contract. |
| Jul 25, 2011 | Signed | Sonny Gray | — | Athletics | Oakland Athletics signed RHP Sonny Gray. |
| Jul 25, 2011 | Signed | Trevor Bauer | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP Trevor Bauer. |
| Jul 25, 2011 | Signed as free agent | Brian Dice | — | Miami Marlins | Florida Marlins signed free agent C Brian Dice to a minor league contract. |
| Jul 25, 2011 | Signed | Justin Atkinson | — | Toronto Blue Jays | Toronto Blue Jays signed SS Justin Atkinson. |
| Jul 25, 2011 | Signed as free agent | Andrew Walter | — | Houston Astros | Houston Astros signed free agent RHP Andrew Walter to a minor league contract. |
| Jul 25, 2011 | Signed as free agent | Val Majewski | — | Texas Rangers | Texas Rangers signed free agent RF Val Majewski to a minor league contract. |
| Jul 25, 2011 | Signed as free agent | Angel Berroa | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent SS Angel Berroa to a minor league contract. |
| Jul 25, 2011 | Signed | Bennett Parry | — | Baltimore Orioles | Baltimore Orioles signed Bennett Parry. |
| Jul 25, 2011 | Signed | Matt Duran | — | New York Yankees | New York Yankees signed 3B Matthew Duran. |
| Jul 25, 2011 | Signed | Bennett Parry | — | Baltimore Orioles | Baltimore Orioles signed LHP Bennett Parry. |
| Jul 25, 2011 | Signed as free agent | Ahmed Caballero | — | Atlanta Braves | Atlanta Braves signed free agent RHP Ahmed Caballero to a minor league contract. |
| Jul 25, 2011 | Signed as free agent | Juan Ortiz | — | Milwaukee Brewers | Milwaukee Brewers signed free agent OF Juan Ortiz to a minor league contract. |
| Jul 24, 2011 | Released | Wily Mo Peña | — | Arizona Diamondbacks | Arizona Diamondbacks released LF Wily Mo Pena. |
| Jul 24, 2011 | Signed | Wallace Gonzalez | — | Houston Astros | Houston Astros signed OF Wallace Gonzalez. |
| Jul 24, 2011 | Signed as free agent | Leonard Davis | — | Washington Nationals | Washington Nationals signed free agent LF Leonard Davis to a minor league contract. |
| Jul 24, 2011 | Signed | Merkin Valdez | — | Texas Rangers | Texas Rangers signed RHP Merkin Valdez. |
| Jul 23, 2011 | Signed as free agent | Charlie Haeger | — | Boston Red Sox | Boston Red Sox signed free agent RHP Charlie Haeger to a minor league contract. |
| Jul 23, 2011 | Signed as free agent | Chase Wright | — | Milwaukee Brewers | Milwaukee Brewers signed free agent LHP Chase Wright to a minor league contract. |
| Jul 23, 2011 | Signed | Tommy Collier | — | Detroit Tigers | Detroit Tigers signed RHP Tommy Collier. |
| Jul 23, 2011 | Signed | Ryan Carpenter | — | Tampa Bay Rays | Tampa Bay Rays signed LHP Ryan Carpenter. |
| Jul 23, 2011 | Signed | Taylor Davis | — | Chicago Cubs | Chicago Cubs signed C Taylor Davis. |
| Jul 23, 2011 | Signed | Michael Fulmer | — | New York Mets | New York Mets signed Michael Fulmer. |
| Jul 22, 2011 | Signed | Billy Burns | — | Washington Nationals | Washington Nationals signed OF Billy Burns. |
| Jul 22, 2011 | Signed as free agent | Aaron Heilman | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Aaron Heilman to a minor league contract. |
| Jul 22, 2011 | Signed | Aaron Westlake | — | Detroit Tigers | Detroit Tigers signed 1B Aaron Westlake. |
| Jul 22, 2011 | Signed | Trevor Gretzky | — | Chicago Cubs | Chicago Cubs signed 1B Trevor Gretzky. |
| Jul 22, 2011 | Signed | Tyler Pill | — | New York Mets | New York Mets signed RHP Tyler Pill. |
| Jul 22, 2011 | Signed | Jack Marder | — | Seattle Mariners | Seattle Mariners signed C Jack Marder. |
| Jul 22, 2011 | Signed | Ben McMahan | — | Milwaukee Brewers | Milwaukee Brewers signed OF Ben McMahan. |
| Jul 22, 2011 | Signed as free agent | Maximo Valerio | — | Washington Nationals | Washington Nationals signed free agent RHP Maximo Valerio to a minor league contract. |
| Jul 22, 2011 | Signed as free agent | Carlos Castro | — | Atlanta Braves | Atlanta Braves signed free agent C Carlos Castro to a minor league contract. |
| Jul 21, 2011 | Signed as free agent | Jason Grilli | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent RHP Jason Grilli. |
| Jul 21, 2011 | Released | Chad Gaudin | — | Washington Nationals | Washington Nationals released RHP Chad Gaudin. |
| Jul 21, 2011 | Signed | Tyler Greene | — | Philadelphia Phillies | Philadelphia Phillies signed SS Tyler Greene. |
| Jul 21, 2011 | Signed as free agent | Andrew Dobies | — | Kansas City Royals | Kansas City Royals signed free agent LHP Andrew Dobies to a minor league contract. |
| Jul 21, 2011 | Signed | Stephen Yarrow | — | San Francisco Giants | San Francisco Giants signed 3B Stephen Yarrow. |
| Jul 21, 2011 | Signed | Frangy Diaz | — | Houston Astros | Houston Astros signed RHP Frangy Colon. |
| Jul 21, 2011 | Signed | Humberto Mejia | — | Cincinnati Reds | Cincinnati Reds signed C Humberto Mejia. |
| Jul 21, 2011 | Signed as free agent | Tomas Morales | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent C Tomas Morales to a minor league contract. |
| Jul 20, 2011 | Signed as free agent | Joe Bateman | — | Tampa Bay Rays | Tampa Bay Rays signed free agent RHP Joe Bateman to a minor league contract. |
| Jul 20, 2011 | Trade | Wilson Betemit | Kansas City Royals | Detroit Tigers | West Michigan Whitecaps Traded LHP Antonio Cruz to Kane County Cougars; Lakeland Flying Tigers Traded C Julio Rodriguez to Wilmington Blue Rocks and Kansas City Royals Traded 3B Wilson Betemit to Detroit Tigers. |
| Jul 20, 2011 | Signed | Jeff Soptic | — | Chicago White Sox | Chicago White Sox signed RHP Jeff Soptic. |
| Jul 20, 2011 | Signed as free agent | Brandon Tripp | — | Philadelphia Phillies | Philadelphia Phillies signed free agent OF Brandon Tripp to a minor league contract. |
| Jul 20, 2011 | Signed as free agent | Steve Singleton | — | Philadelphia Phillies | Philadelphia Phillies signed free agent 2B Steve Singleton to a minor league contract. |
| Jul 20, 2011 | Signed | Abelisario Guerrero | — | Cleveland Guardians | Cleveland Indians signed LHP Abelisario Guerrero. |
| Jul 20, 2011 | Signed | Scott Williams | — | Washington Nationals | Washington Nationals signed RHP Scott Williams. |
| Jul 20, 2011 | Signed as free agent | John Peters | — | Washington Nationals | Washington Nationals signed free agent RHP John Peters to a minor league contract. |
| Jul 20, 2011 | Signed | Josue Montanez | — | Minnesota Twins | Minnesota Twins signed LHP Josue Montanez. |
| Jul 20, 2011 | Signed as free agent | Daniel Mahoney | — | New York Yankees | New York Yankees signed free agent RHP Dan Mahoney to a minor league contract. |
| Jul 20, 2011 | Signed as free agent | Elier Hernandez | — | Kansas City Royals | Kansas City Royals signed free agent OF Elier Hernandez to a minor league contract. |
| Jul 20, 2011 | Signed as free agent | Miguel Andujar | — | New York Yankees | New York Yankees signed free agent 3B Miguel Andujar to a minor league contract. |
| Jul 20, 2011 | Signed as free agent | Hector Hidalgo | — | Seattle Mariners | Seattle Mariners signed free agent RHP Hector Hidalgo to a minor league contract. |
| Jul 19, 2011 | Released | Aaron Heilman | — | Arizona Diamondbacks | Arizona Diamondbacks released RHP Aaron Heilman. |
| Jul 19, 2011 | Trade | Zach Phillips | Texas Rangers | Baltimore Orioles | Texas Rangers Traded LHP Zach Phillips to Baltimore Orioles and Norfolk Tides Traded SS Nick Green to Round Rock Express. |
| Jul 19, 2011 | Signed | C.J. McElroy | — | St. Louis Cardinals | St. Louis Cardinals signed OF C.J. McElroy. |
| Jul 19, 2011 | Signed | Kyle Crick | — | San Francisco Giants | San Francisco Giants signed RHP Kyle Crick. |
| Jul 19, 2011 | Signed | Bryce Bandilla | — | San Francisco Giants | San Francisco Giants signed LHP Bryce Bandilla. |
| Jul 19, 2011 | Signed | Jonathan Jones | — | San Francisco Giants | San Francisco Giants signed 3B Jonathan Jones. |
| Jul 19, 2011 | Trade | Jeff Keppinger | Houston Astros | San Francisco Giants | Houston Astros Traded 2B Jeff Keppinger to San Francisco Giants and Richmond Flying Squirrels Traded RHP Henry Sosa and RHP Jason Stoffel to Corpus Christi Hooks. |
| Jul 19, 2011 | Signed as free agent | Jesús Sucre | — | Seattle Mariners | Seattle Mariners signed free agent C Jesus Sucre to a minor league contract. |
| Jul 19, 2011 | Signed as free agent | Mike Parisi | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent RHP Mike Parisi to a minor league contract. |
| Jul 19, 2011 | Signed | Craig Stem | — | Los Angeles Dodgers | Los Angeles Dodgers signed RHP Craig Stem. |
| Jul 19, 2011 | Signed | Alex Panteliotis | — | New York Mets | New York Mets signed LHP Alex Panteliodis. |
| Jul 19, 2011 | Signed as free agent | Jefferson Medina | — | Seattle Mariners | Seattle Mariners signed free agent RHP Jeffeson Medina to a minor league contract. |
| Jul 18, 2011 | Signed | Desmond Henry | — | Texas Rangers | Texas Rangers signed OF Desmond Henry. |
| Jul 18, 2011 | Signed | Neftali Rosario | — | Chicago Cubs | Chicago Cubs signed C Neftali Rosario. |
| Jul 18, 2011 | Signed | Chad Thompson | — | Milwaukee Brewers | Milwaukee Brewers signed RHP Chad Thompson. |
| Jul 18, 2011 | Signed | Tyler Collins | — | Detroit Tigers | Detroit Tigers signed OF Tyler Collins. |
| Jul 18, 2011 | Signed as free agent | Anthony Castro | — | Detroit Tigers | Detroit Tigers signed free agent RHP Anthony Castro to a minor league contract. |
| Jul 17, 2011 | Signed as free agent | Breland Brown | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent OF Breland Brown to a minor league contract. |
| Jul 17, 2011 | Signed as free agent | Fernando Perez | — | New York Mets | New York Mets signed free agent OF Fernando Perez to a minor league contract. |
| Jul 17, 2011 | Signed as free agent | Gustavo Chacín | — | New York Mets | New York Mets signed free agent LHP Gustavo Chacin to a minor league contract. |
| Jul 17, 2011 | Signed | Sheldon McDonald | — | Chicago Cubs | Chicago Cubs signed LHP Sheldon McDonald. |
| Jul 17, 2011 | Signed as free agent | Bryan Johns | — | Boston Red Sox | Boston Red Sox signed free agent SS Bryan Johns to a minor league contract. |
| Jul 17, 2011 | Signed | Robert Kral | — | San Diego Padres | San Diego Padres signed C Robert Kral. |
| Jul 16, 2011 | Signed as free agent | John Van Benschoten | — | San Diego Padres | San Diego Padres signed free agent RHP John Van Benschoten to a minor league contract. |
| Jul 16, 2011 | Signed as free agent | Dave Bush | — | Chicago Cubs | Chicago Cubs signed free agent RHP Dave Bush to a minor league contract. |
| Jul 16, 2011 | Signed as free agent | Jorge Jimenez | — | Cincinnati Reds | Cincinnati Reds signed free agent 3B Jorge Jimenez to a minor league contract. |
| Jul 16, 2011 | Signed as free agent | Angelo Castellano | — | Kansas City Royals | Kansas City Royals signed free agent SS Angelo Castellano to a minor league contract. |
| Jul 15, 2011 | Signed | Sean Gilmartin | — | Atlanta Braves | Atlanta Braves signed LHP Sean Gilmartin. |
| Jul 15, 2011 | Signed as free agent | Yunesky Sanchez | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent 3B Yunesky Sanchez to a minor league contract. |
| Jul 15, 2011 | Signed as free agent | Niuman Romero | — | New York Mets | New York Mets signed free agent 2B Niuman Romero to a minor league contract. |
| Jul 15, 2011 | Signed as free agent | Harold Mozingo | — | Toronto Blue Jays | Toronto Blue Jays signed free agent RHP Harold Mozingo to a minor league contract. |
| Jul 15, 2011 | Signed as free agent | Adam Osteen | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Adam Osteen to a minor league contract. |
| Jul 15, 2011 | Signed | Braulio Ortiz | — | Chicago White Sox | Chicago White Sox signed RHP Braulio Ortiz. |
| Jul 15, 2011 | Signed | Thomas Pearson | — | San Diego Padres | San Diego Padres signed RHP Thomas Pearson. |
| Jul 15, 2011 | Signed | Warren Slack | — | San Diego Padres | San Diego Padres signed RHP Warren Slack. |
| Jul 15, 2011 | Signed | Ryan Wright | — | Cincinnati Reds | Cincinnati Reds signed SS Ryan Wright. |
| Jul 15, 2011 | Signed | Clint Wright | — | Atlanta Braves | Atlanta Braves signed RHP Clint Wright. |
| Jul 15, 2011 | Signed as free agent | Erwin Almonte | — | Miami Marlins | Florida Marlins signed free agent OF Erwin Almonte to a minor league contract. |
| Jul 14, 2011 | Signed | Taylor Hill | — | Washington Nationals | Washington Nationals signed RHP Taylor Hill. |
| Jul 14, 2011 | Signed | Dixon Anderson | — | Washington Nationals | Washington Nationals signed RHP Dixon Anderson. |
| Jul 14, 2011 | Signed as free agent | J.C. Romero | — | New York Yankees | New York Yankees signed free agent LHP J.C. Romero to a minor league contract. |
| Jul 14, 2011 | Signed | Alex Dickerson | — | Pittsburgh Pirates | Pittsburgh Pirates signed OF Alex Dickerson. |
| Jul 14, 2011 | Released | Marcus Thames | — | Los Angeles Dodgers | Los Angeles Dodgers released LF Marcus Thames. |
| Jul 14, 2011 | Signed | Mason Hope | — | Miami Marlins | Florida Marlins signed RHP Mason Hope. |
| Jul 14, 2011 | Signed | Joe Tuschak | — | New York Mets | New York Mets signed OF Joe Tuschak. |
| Jul 14, 2011 | Signed as free agent | Matt Lentz | — | Cincinnati Reds | Cincinnati Reds signed free agent OF Matt Lentz to a minor league contract. |
| Jul 14, 2011 | Signed | Chris Elder | — | Kansas City Royals | Kansas City Royals signed OF Chris Elder. |
| Jul 14, 2011 | Signed | Eddie Sipple | — | Los Angeles Angels | Los Angeles Angels signed LHP Eddie Sipple. |
| Jul 14, 2011 | Signed | Jake Williams | — | San Francisco Giants | San Francisco Giants signed Jake Williams. |
| Jul 14, 2011 | Signed | Jake Williams | — | Arizona Diamondbacks | Arizona Diamondbacks signed 1B Jake Williams. |
| Jul 14, 2011 | Signed as free agent | Nathan Raffle | — | Atlanta Braves | Atlanta Braves signed free agent C Nathan Raffle to a minor league contract. |
| Jul 14, 2011 | Signed as free agent | Royce Ring | — | Boston Red Sox | Boston Red Sox signed free agent LHP Royce Ring to a minor league contract. |
| Jul 14, 2011 | Signed as free agent | Georvic Perez | — | Seattle Mariners | Seattle Mariners signed free agent C Georvic Perez to a minor league contract. |
| Jul 13, 2011 | Trade | Francisco Rodríguez | New York Mets | Milwaukee Brewers | New York Mets traded RHP Francisco Rodriguez to Milwaukee Brewers. |
| Jul 13, 2011 | Signed | Colten Brewer | — | Pittsburgh Pirates | Pittsburgh Pirates signed RHP Colten Brewer. |
| Jul 13, 2011 | Signed | Tyler Wilson | — | Baltimore Orioles | Baltimore Orioles signed RHP Tyler Wilson. |
| Jul 13, 2011 | Signed as free agent | Justin Miller | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent RHP Justin Miller to a minor league contract. |
| Jul 13, 2011 | Signed | Kelvin Vasquez | — | Texas Rangers | Texas Rangers signed RHP Kelvin Vasquez. |
| Jul 13, 2011 | Signed | Juan Jaquez | — | Chicago White Sox | Chicago White Sox signed RHP Juan Jaquez. |
| Jul 13, 2011 | Signed | Jeffry Santos | — | Chicago White Sox | Chicago White Sox signed SS Jeffry Santos. |
| Jul 13, 2011 | Signed | Ivan Vargas | — | Chicago White Sox | Chicago White Sox signed RHP Ivan Vargas. |
| Jul 13, 2011 | Signed | Geordy Parra | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP Geordy Parra. |
| Jul 13, 2011 | Signed | Ranfi Casimiro | — | Philadelphia Phillies | Philadelphia Phillies signed Ranfi Casimiro. |
| Jul 13, 2011 | Signed | Luis Acosta | — | Chicago Cubs | Chicago Cubs signed SS Luis Acosta. |
| Jul 13, 2011 | Signed as free agent | Luis Reynoso | — | Houston Astros | Houston Astros signed free agent SS Luis Reynoso to a minor league contract. |
| Jul 13, 2011 | Signed as free agent | Miguel Gonzalez | — | Minnesota Twins | Minnesota Twins signed free agent RHP Miguel Gonzalez to a minor league contract. |
| Jul 12, 2011 | Trade | Juan Rivera | Toronto Blue Jays | Los Angeles Dodgers | Toronto Blue Jays traded LF Juan Rivera to Los Angeles Dodgers. |
| Jul 12, 2011 | Signed | Jason Creasy | — | Pittsburgh Pirates | Pittsburgh Pirates signed RHP Jason Creasy. |
| Jul 12, 2011 | Signed | Jake Esch | — | Miami Marlins | Florida Marlins signed RHP Jake Esch. |
| Jul 12, 2011 | Signed as free agent | Walker Moore | — | Miami Marlins | Florida Marlins signed free agent RHP Walker Moore to a minor league contract. |
| Jul 12, 2011 | Signed | Williams Jerez | — | Boston Red Sox | Boston Red Sox signed OF Williams Jerez. |
| Jul 12, 2011 | Signed as free agent | Nolan Clark | — | Philadelphia Phillies | Philadelphia Phillies signed free agent C Nolan Clark to a minor league contract. |
| Jul 12, 2011 | Signed | Erik Johnson | — | Chicago White Sox | Chicago White Sox signed RHP Erik Johnson. |
| Jul 12, 2011 | Signed as free agent | Thomas Berryhill | — | Toronto Blue Jays | Toronto Blue Jays signed free agent RHP Thomas Berryhill to a minor league contract. |
| Jul 12, 2011 | Signed | Deybi Garcia | — | Pittsburgh Pirates | Pittsburgh Pirates signed C Deybi Garcia. |
| Jul 12, 2011 | Signed | Dustin Cameron | — | Philadelphia Phillies | Philadelphia Phillies signed RHP Dustin Cameron. |
| Jul 12, 2011 | Signed | Justin Boudreaux | — | Los Angeles Dodgers | Los Angeles Dodgers signed IF Justin Boudreaux. |
| Jul 12, 2011 | Signed | Frederick Serrano | — | Houston Astros | Houston Astros signed OF Frederick Serrano. |
| Jul 12, 2011 | Signed | Adrian Morales | — | Kansas City Royals | Kansas City Royals signed 2B Adrian Morales. |
| Jul 12, 2011 | Signed | Derek Law | — | San Francisco Giants | San Francisco Giants signed RHP Derek Law. |
| Jul 12, 2011 | Signed | Zeke DeVoss | — | Chicago Cubs | Chicago Cubs signed OF Zeke DeVoss. |
| Jul 12, 2011 | Signed as free agent | Kanekoa Texeira | — | New York Yankees | New York Yankees signed free agent RHP Kanekoa Texeira to a minor league contract. |
| Jul 12, 2011 | Signed as free agent | Wildert Pujols | — | Miami Marlins | Florida Marlins signed free agent OF Wildert Pujols to a minor league contract. |
| Jul 12, 2011 | Signed as free agent | Crisford Adames | — | Texas Rangers | Texas Rangers signed free agent SS Crisford Adames to a minor league contract. |
| Jul 11, 2011 | Released | Bobby Cramer | — | Athletics | Oakland Athletics released LHP Bobby Cramer. |
| Jul 11, 2011 | Signed | Steven Proscia | — | Seattle Mariners | Seattle Mariners signed 3B Steven Proscia. |
| Jul 11, 2011 | Signed | John Taylor | — | Seattle Mariners | Seattle Mariners signed RHP John Taylor. |
| Jul 11, 2011 | Signed | Steve Cochrane | — | Seattle Mariners | Seattle Mariners signed RHP Steve Cochrane. |
| Jul 11, 2011 | Signed as free agent | Francis Joseph | — | New York Yankees | New York Yankees signed free agent RHP Francis Joseph to a minor league contract. |
| Jul 11, 2011 | Signed | Axel Diaz | — | Pittsburgh Pirates | Pittsburgh Pirates signed RHP Axel Diaz. |
| Jul 11, 2011 | Signed | Domingo Jabalera | — | Atlanta Braves | Atlanta Braves signed RHP Domingo Jabalera. |
| Jul 11, 2011 | Signed | Darbin Morel | — | Philadelphia Phillies | Philadelphia Phillies signed RHP Darbin Morel. |
| Jul 11, 2011 | Signed as free agent | Jose Fuentes | — | Detroit Tigers | Detroit Tigers signed free agent RHP Jose Fuentes to a minor league contract. |
| Jul 11, 2011 | Signed as free agent | Eduardo Jiménez | — | Detroit Tigers | Detroit Tigers signed free agent RHP Eduardo Jimenez to a minor league contract. |
| Jul 10, 2011 | Signed | Daniel Oliver | — | Miami Marlins | Florida Marlins signed RHP Daniel Oliver. |
| Jul 10, 2011 | Signed | Andrew McKirahan | — | Chicago Cubs | Chicago Cubs signed LHP Andrew McKirahan. |
| Jul 10, 2011 | Signed as free agent | Victor Velasquez | — | Chicago White Sox | Chicago White Sox signed free agent SS Victor Velasquez to a minor league contract. |
| Jul 10, 2011 | Signed as free agent | Roberto Vahlis | — | Toronto Blue Jays | Toronto Blue Jays signed free agent C Roberto Vahlis to a minor league contract. |
| Jul 9, 2011 | Signed as free agent | Blake Johnson | — | Colorado Rockies | Colorado Rockies signed free agent RHP Blake Johnson to a minor league contract. |
| Jul 9, 2011 | Signed | Ronald Guzmán | — | Texas Rangers | Texas Rangers signed OF Ronald Guzman. |
| Jul 9, 2011 | Signed | Cody Hebner | — | San Diego Padres | San Diego Padres signed RHP Cody Hebner. |
| Jul 9, 2011 | Signed as free agent | Todd Privett | — | San Diego Padres | San Diego Padres signed free agent LHP Todd Privett to a minor league contract. |
| Jul 9, 2011 | Signed | Trevor Story | — | Colorado Rockies | Colorado Rockies signed SS Trevor Story. |
| Jul 9, 2011 | Signed | Raymel Flores | — | Boston Red Sox | Boston Red Sox signed Raymel Flores. |
| Jul 9, 2011 | Signed as free agent | Nelson Leon | — | Atlanta Braves | Atlanta Braves signed free agent LHP Nelson Leon to a minor league contract. |
| Jul 9, 2011 | Signed as free agent | Emerson Jimenez | — | Colorado Rockies | Colorado Rockies signed free agent SS Emerson Jimenez to a minor league contract. |
| Jul 8, 2011 | Released | Brian Gordon | — | New York Yankees | New York Yankees released RHP Brian Gordon. |
| Jul 8, 2011 | Released | Dave Bush | — | Texas Rangers | Texas Rangers released RHP Dave Bush. |
| Jul 8, 2011 | Signed | Evan Frazar | — | Cleveland Guardians | Cleveland Indians signed SS Evan Frazar. |
| Jul 8, 2011 | Signed | Tommy Toledo | — | Milwaukee Brewers | Milwaukee Brewers signed RHP Tommy Toledo. |
| Jul 8, 2011 | Signed as free agent | Robert Roth | — | Atlanta Braves | Atlanta Braves signed free agent RHP Robert Roth to a minor league contract. |
| Jul 8, 2011 | Signed as free agent | Ron Mahay | — | St. Louis Cardinals | St. Louis Cardinals signed free agent LHP Ron Mahay to a minor league contract. |
| Jul 8, 2011 | Signed | Cole Frenzel | — | New York Mets | New York Mets signed 1B Cole Frenzel. |
| Jul 8, 2011 | Signed | Peter Copa | — | Los Angeles Angels | Los Angeles Angels signed 2B Peter Copa. |
| Jul 8, 2011 | Signed as free agent | Hilario Villa | — | Seattle Mariners | Seattle Mariners signed free agent OF Hilario Villa to a minor league contract. |
| Jul 8, 2011 | Signed as free agent | Antonio Senzatela | — | Colorado Rockies | Colorado Rockies signed free agent RHP Antonio Senzatela to a minor league contract. |
| Jul 8, 2011 | Signed as free agent | Algenis Ramirez | — | Washington Nationals | Washington Nationals signed free agent RHP Algenis Ramirez to a minor league contract. |
| Jul 7, 2011 | Signed | Matt Campbell | — | Philadelphia Phillies | Philadelphia Phillies signed RHP Matt Campbell. |
| Jul 7, 2011 | Signed | Jose Rivera | — | Baltimore Orioles | Baltimore Orioles signed RHP Jose Rivera. |
| Jul 7, 2011 | Signed | Eric Wooten | — | Baltimore Orioles | Baltimore Orioles signed LHP Eric Wooten. |
| Jul 7, 2011 | Signed | Nick Maronde | — | Los Angeles Angels | Los Angeles Angels signed LHP Nick Maronde. |
| Jul 7, 2011 | Signed as free agent | Che Yeyne Abad | — | Detroit Tigers | Detroit Tigers signed free agent Che Yeyne Abad. |
| Jul 7, 2011 | Signed as free agent | Robert Morillo | — | Detroit Tigers | Detroit Tigers signed free agent Robert Morillo. |
| Jul 7, 2011 | Signed as free agent | Alejandro Arteaga | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Alejandro Arteaga to a minor league contract. |
| Jul 7, 2011 | Signed | Shane Farrell | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Shane Farrell . |
| Jul 7, 2011 | Signed as free agent | Felix A. Santana | — | Detroit Tigers | Detroit Tigers signed free agent C Felix A. Santana to a minor league contract. |
| Jul 7, 2011 | Signed as free agent | Blaine Boyer | — | St. Louis Cardinals | St. Louis Cardinals signed free agent RHP Blaine Boyer to a minor league contract. |
| Jul 7, 2011 | Signed as free agent | Douglas Parada | — | Philadelphia Phillies | Philadelphia Phillies signed free agent LHP Douglas Parada to a minor league contract. |
| Jul 7, 2011 | Signed as free agent | Jhonnis Gonzalez | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Jhonnis Gonzalez to a minor league contract. |
| Jul 7, 2011 | Signed as free agent | Orlando Villarroel | — | Detroit Tigers | Detroit Tigers signed free agent RHP Orlando Villarroel to a minor league contract. |
| Jul 7, 2011 | Signed | Gabriel Rosa | — | Cincinnati Reds | Cincinnati Reds signed OF Gabriel Rosa. |
| Jul 7, 2011 | Signed as free agent | Alexander Perdomo | — | Philadelphia Phillies | Philadelphia Phillies signed free agent 2B Alexander Perdomo to a minor league contract. |
| Jul 7, 2011 | Signed | Cesar Medina | — | Atlanta Braves | Atlanta Braves signed RHP Cesar Medina. |
| Jul 7, 2011 | Signed as free agent | Jose Jordan | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent SS Jose Jordan to a minor league contract. |
| Jul 7, 2011 | Signed as free agent | Abrahan Rodriguez | — | Tampa Bay Rays | Tampa Bay Rays signed free agent RHP Abrahan Rodriguez to a minor league contract. |
| Jul 7, 2011 | Signed as free agent | Francisco Gonzalez | — | Atlanta Braves | Atlanta Braves signed free agent RHP Francisco Gonzalez to a minor league contract. |
| Jul 7, 2011 | Signed as free agent | Jesus Jones | — | Atlanta Braves | Atlanta Braves signed free agent RHP Jesus Jones to a minor league contract. |
| Jul 7, 2011 | Signed as free agent | Jesus Heredia | — | Atlanta Braves | Atlanta Braves signed free agent OF Jesus Heredia to a minor league contract. |
| Jul 6, 2011 | Signed as free agent | Germán Márquez | — | Tampa Bay Rays | Tampa Bay Rays signed free agent RHP German Marquez to a minor league contract. |
| Jul 6, 2011 | Signed as free agent | Benjamin Molina | — | Tampa Bay Rays | Tampa Bay Rays signed free agent LHP Benjamin Molina to a minor league contract. |
| Jul 6, 2011 | Signed as free agent | Jorman Duarte | — | Tampa Bay Rays | Tampa Bay Rays signed free agent RHP Jorman Duarte to a minor league contract. |
| Jul 6, 2011 | Signed as free agent | Cesar Hernandez | — | Tampa Bay Rays | Tampa Bay Rays signed free agent IF Cesar Hernandez to a minor league contract. |
| Jul 6, 2011 | Signed as free agent | Cristopher Crisostomo | — | Tampa Bay Rays | Tampa Bay Rays signed free agent LHP Christopher Crisostomo to a minor league contract. |
| Jul 6, 2011 | Signed as free agent | Norly Suarez | — | Tampa Bay Rays | Tampa Bay Rays signed free agent SS Norly Suarez to a minor league contract. |
| Jul 6, 2011 | Signed as free agent | Eddy Castillo | — | Tampa Bay Rays | Tampa Bay Rays signed free agent LHP Eddy Castillo to a minor league contract. |
| Jul 6, 2011 | Signed as free agent | Francisco Martinez | — | Tampa Bay Rays | Tampa Bay Rays signed free agent RHP Francisco Martinez to a minor league contract. |
| Jul 6, 2011 | Signed | John Hicks | — | Seattle Mariners | Seattle Mariners signed C John Hicks. |
| Jul 6, 2011 | Released | Kanekoa Texeira | — | New York Yankees | New York Yankees released RHP Kanekoa Texeira. |
| Jul 6, 2011 | Signed as free agent | Nomar Mazara | — | Texas Rangers | Texas Rangers signed free agent OF Nomar Mazara to a minor league contract. |
| Jul 6, 2011 | Signed as free agent | Zach Simons | — | Miami Marlins | Florida Marlins signed free agent RHP Zach Simons to a minor league contract. |
| Jul 6, 2011 | Signed | Will Roberts | — | Cleveland Guardians | Cleveland Indians signed RHP Will Roberts. |
| Jul 6, 2011 | Signed as free agent | Miguel Mejia | — | Miami Marlins | Florida Marlins signed free agent RHP Miguel Mejia to a minor league contract. |
| Jul 6, 2011 | Signed | Daniel Adrian | — | Chicago Cubs | Chicago Cubs signed RHP Daniel Adrian. |
| Jul 6, 2011 | Signed | Yunerky Adames | — | Pittsburgh Pirates | Pittsburgh Pirates signed 1B Yunelky Adames. |
| Jul 6, 2011 | Signed | Yomifer Polanco | — | Pittsburgh Pirates | Pittsburgh Pirates signed OF Yomifer Polanco. |
| Jul 6, 2011 | Signed as free agent | Steven Fuentes | — | Detroit Tigers | Detroit Tigers signed free agent SS Steven Fuentes to a minor league contract. |
| Jul 5, 2011 | Signed | Keenyn Walker | — | Chicago White Sox | Chicago White Sox signed OF Keenyn Walker. |
| Jul 5, 2011 | Trade | Mike Cameron | Boston Red Sox | Miami Marlins | Boston Red Sox traded cash and CF Mike Cameron to Florida Marlins for Player To Be Named Later. |
| Jul 5, 2011 | Signed | James Zamarripa | — | Seattle Mariners | Seattle Mariners signed OF James Zamarripa. |
| Jul 5, 2011 | Signed | Nick Valenza | — | Seattle Mariners | Seattle Mariners signed LHP Nick Valenza. |
| Jul 5, 2011 | Signed | Richard White | — | Seattle Mariners | Seattle Mariners signed RHP Richard White. |
| Jul 5, 2011 | Signed | Gabe Saquilon | — | Seattle Mariners | Seattle Mariners signed RHP Gabe Saquilon. |
| Jul 5, 2011 | Signed as free agent | Victor Gomez | — | Atlanta Braves | Atlanta Braves signed free agent C Victor Gomez to a minor league contract. |
| Jul 5, 2011 | Signed as free agent | Derrick Hudgins | — | Detroit Tigers | Detroit Tigers signed free agent SS Derrick Hudgins to a minor league contract. |
| Jul 5, 2011 | Signed | Jake Faria | — | Tampa Bay Rays | Tampa Bay Rays signed RHP Jacob Faria. |
| Jul 5, 2011 | Signed | Josh Adams | — | Miami Marlins | Florida Marlins signed IF Josh Adams. |
| Jul 5, 2011 | Signed | Pratt Maynard | — | Los Angeles Dodgers | Los Angeles Dodgers signed C Pratt Maynard. |
| Jul 5, 2011 | Signed as free agent | DJ Johnson | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP D.J. Johnson to a minor league contract. |
| Jul 5, 2011 | Signed as free agent | Eric Eadington | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent LHP Eric Eadington to a minor league contract. |
| Jul 5, 2011 | Signed | Matt Laney | — | Los Angeles Dodgers | Los Angeles Dodgers signed LHP Matt Laney. |
| Jul 5, 2011 | Signed | Robert Purpura | — | Los Angeles Dodgers | Los Angeles Dodgers signed RHP Robert Purpura. |
| Jul 5, 2011 | Signed as free agent | Jason West | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent RHP Jason West to a minor league contract. |
| Jul 5, 2011 | Signed | Scott Wingo | — | Los Angeles Dodgers | Los Angeles Dodgers signed SS Scott Wingo. |
| Jul 5, 2011 | Signed as free agent | Luis Tovar | — | Los Angeles Angels | Los Angeles Angels signed free agent CF Luis Tovar to a minor league contract. |
| Jul 4, 2011 | Signed as free agent | Dawel Lugo | — | Toronto Blue Jays | Toronto Blue Jays signed free agent SS Dawel Lugo to a minor league contract. |
| Jul 4, 2011 | Signed as free agent | Osman Gutierrez | — | Toronto Blue Jays | Toronto Blue Jays signed free agent RHP Osman Gutierrez to a minor league contract. |
| Jul 4, 2011 | Signed | Craig Missigman | — | New York Mets | New York Mets signed RHP Craig Missigman. |
| Jul 4, 2011 | Signed | Kenny Peoples-Walls | — | St. Louis Cardinals | St. Louis Cardinals signed SS Kenneth Peoples-Walls. |
| Jul 4, 2011 | Signed as free agent | Matt Rein | — | St. Louis Cardinals | St. Louis Cardinals signed free agent LHP Matt Rein to a minor league contract. |
| Jul 4, 2011 | Signed as free agent | Joe Mather | — | Colorado Rockies | Colorado Rockies signed free agent RF Joe Mather to a minor league contract. |
| Jul 4, 2011 | Signed | Mike Marjama | — | Chicago White Sox | Chicago White Sox signed C Mike Marjama. |
| Jul 4, 2011 | Signed as free agent | Miguel Batista | — | New York Mets | New York Mets signed free agent RHP Miguel Batista to a minor league contract. |
| Jul 4, 2011 | Signed | Cole Green | — | Cincinnati Reds | Cincinnati Reds signed RHP Cole Green. |
| Jul 4, 2011 | Signed | Patric Tolentino | — | Cleveland Guardians | Cleveland Indians signed C Patric Tolentino. |
| Jul 4, 2011 | Signed | Taiwan Easterling | — | Chicago Cubs | Chicago Cubs signed OF Taiwan Easterling. |
| Jul 4, 2011 | Signed as free agent | Francisco Silva | — | Philadelphia Phillies | Philadelphia Phillies signed free agent SS Francisco Silva to a minor league contract. |
| Jul 4, 2011 | Signed as free agent | Shane Bay | — | New York Mets | New York Mets signed free agent LHP Shane Bay to a minor league contract. |
| Jul 4, 2011 | Signed as free agent | Omar Andujar | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent C Omar Andujar to a minor league contract. |
| Jul 4, 2011 | Signed as free agent | Luis Monasterio | — | Atlanta Braves | Atlanta Braves signed free agent 2B Luis Monasterio to a minor league contract. |
| Jul 3, 2011 | Signed | Adam Morgan | — | Philadelphia Phillies | Philadelphia Phillies signed LHP Adam Morgan. |
| Jul 3, 2011 | Signed | Justin James | — | New York Yankees | New York Yankees signed OF Justin James. |
| Jul 3, 2011 | Signed | Jalen Simmons | — | Baltimore Orioles | Baltimore Orioles signed OF Jalen Simmons. |
| Jul 3, 2011 | Signed | Mark Blackmar | — | Baltimore Orioles | Baltimore Orioles signed RHP Mark Blackmar. |
| Jul 3, 2011 | Signed as free agent | Billy Nowlin | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent OF Billy Nowlin to a minor league contract. |
| Jul 3, 2011 | Signed | Kevin Jacob | — | St. Louis Cardinals | St. Louis Cardinals signed RHP Kevin Jacob. |
| Jul 3, 2011 | Signed as free agent | Garrett Wittels | — | St. Louis Cardinals | St. Louis Cardinals signed free agent SS Garrett Wittels to a minor league contract. |
| Jul 3, 2011 | Signed | Kyle DeVore | — | Texas Rangers | Texas Rangers signed RHP Kyle DeVore. |
| Jul 3, 2011 | Signed | Jerad Eickhoff | — | Texas Rangers | Texas Rangers signed RHP Jerad Eickhoff. |
| Jul 3, 2011 | Signed | Tant Shepherd | — | New York Mets | New York Mets signed 1B Tant Shepherd. |
| Jul 3, 2011 | Signed | Jean Delgado | — | San Francisco Giants | San Francisco Giants signed SS Jean Delgado. |
| Jul 3, 2011 | Signed | Robert Gsellman | — | New York Mets | New York Mets signed RHP Robert Gsellman. |
| Jul 3, 2011 | Signed | Matt Budgell | — | New York Mets | New York Mets signed RHP Matthew Budgell. |
| Jul 3, 2011 | Signed | Christian Diaz | — | San Francisco Giants | San Francisco Giants signed OF Christian Diaz. |
| Jul 3, 2011 | Signed | Cesar Mejia | — | Cincinnati Reds | Cincinnati Reds signed SS Cesar Mejia. |
| Jul 3, 2011 | Signed as free agent | Aderlin Santa | — | Detroit Tigers | Detroit Tigers signed free agent 3B Adelyn Santa to a minor league contract. |
| Jul 2, 2011 | Signed | Jack Wagoner | — | Cleveland Guardians | Cleveland Indians signed RHP Jack Wagoner. |
| Jul 2, 2011 | Signed as free agent | Dewin Perez | — | St. Louis Cardinals | St. Louis Cardinals signed free agent LHP Dewin Perez to a minor league contract. |
| Jul 2, 2011 | Signed as free agent | Eliezer Álvarez | — | St. Louis Cardinals | St. Louis Cardinals signed free agent SS Eliezer Alvarez to a minor league contract. |
| Jul 2, 2011 | Signed as free agent | José Godoy | — | St. Louis Cardinals | St. Louis Cardinals signed free agent C Jose Godoy to a minor league contract. |
| Jul 2, 2011 | Signed as free agent | Alirio Negrette | — | St. Louis Cardinals | St. Louis Cardinals signed free agent LHP Alirio Negrette to a minor league contract. |
| Jul 2, 2011 | Signed as free agent | Luis Arias | — | St. Louis Cardinals | St. Louis Cardinals signed free agent RHP Luis Arias to a minor league contract. |
| Jul 2, 2011 | Signed as free agent | Brad Furnish | — | Chicago White Sox | Chicago White Sox signed free agent LHP Brad Furnish to a minor league contract. |
| Jul 2, 2011 | Signed | Matt Summers | — | Minnesota Twins | Minnesota Twins signed RHP Matthew Summers. |
| Jul 2, 2011 | Signed | Travis Higgs | — | Seattle Mariners | Seattle Mariners signed C Travis Higgs. |
| Jul 2, 2011 | Signed | Kyle Castro | — | Texas Rangers | Texas Rangers signed RHP Kyle Castro. |
| Jul 2, 2011 | Signed | Seth Moranda | — | Atlanta Braves | Atlanta Braves signed 2B Seth Moranda. |
| Jul 2, 2011 | Signed as free agent | Sam Gibbons | — | Minnesota Twins | Minnesota Twins signed free agent RHP Sam Gibbons. |
| Jul 2, 2011 | Signed as free agent | José Ruiz | — | San Diego Padres | San Diego Padres signed free agent C Jose Ruiz to a minor league contract. |
| Jul 2, 2011 | Signed | Mark Malave | — | Chicago Cubs | Chicago Cubs signed C Mark Malave. |
| Jul 2, 2011 | Signed as free agent | Omar Obregon | — | Atlanta Braves | Atlanta Braves signed free agent SS Omar Obregon to a minor league contract. |
| Jul 2, 2011 | Signed as free agent | Iosif Bernal | — | Atlanta Braves | Atlanta Braves signed free agent OF Iosif Bernal to a minor league contract. |
| Jul 2, 2011 | Signed as free agent | Victor Reyes | — | Atlanta Braves | Atlanta Braves signed free agent Victor Reyes. |
| Jul 2, 2011 | Signed as free agent | Roney Alcala | — | Chicago Cubs | Chicago Cubs signed free agent 3B Roney Alcala to a minor league contract. |
| Jul 2, 2011 | Signed as free agent | Emanuel Chavez | — | Detroit Tigers | Detroit Tigers signed free agent RHP Emanuel Chavez to a minor league contract. |
| Jul 2, 2011 | Signed as free agent | Elvis Escobar | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent OF Elvis Escobar to a minor league contract. |
| Jul 2, 2011 | Signed | Harold Ramírez | — | Pittsburgh Pirates | Pittsburgh Pirates signed OF Harold Ramirez. |
| Jul 2, 2011 | Signed as free agent | Anthony Santander | — | Cleveland Guardians | Cleveland Indians signed free agent OF Anthony Santander to a minor league contract. |
| Jul 1, 2011 | Signed | Kenny Swab | — | Kansas City Royals | Kansas City Royals signed C Kenny Swab. |
| Jul 1, 2011 | Signed as free agent | Sean Henry | — | Atlanta Braves | Atlanta Braves signed free agent OF Sean Henry to a minor league contract. |
| Jul 1, 2011 | Signed | Curt Casali | — | Detroit Tigers | Detroit Tigers signed C Curt Casali. |
| Jul 1, 2011 | Signed | John Barr | — | Cleveland Guardians | Cleveland Indians signed OF John Barr. |
| Jul 1, 2011 | Signed | Juan Marte | — | Cleveland Guardians | Cleveland Indians signed RHP Juan Marte. |
| Jul 1, 2011 | Signed | Mark Lamm | — | Atlanta Braves | Atlanta Braves signed RHP Mark Lamm. |
| Jul 1, 2011 | Signed | Leudi Otano | — | Milwaukee Brewers | Milwaukee Brewers signed C Leudi Otano. |
| Jul 1, 2011 | Signed as free agent | Miguel Severino | — | San Diego Padres | San Diego Padres signed free agent RHP Miguel Severino to a minor league contract. |
| Jul 1, 2011 | Signed | Isaac Gil | — | Tampa Bay Rays | Tampa Bay Rays signed RHP Isaac Gil. |
| Jul 1, 2011 | Signed as free agent | Cesilio Pimentel | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent LHP Cesilio Pimentel to a minor league contract. |
| Jun 30, 2011 | Trade | Sergio Mitre | Milwaukee Brewers | New York Yankees | Milwaukee Brewers traded RHP Sergio Mitre to New York Yankees. |
| Jun 30, 2011 | Released | Melvin Mora | — | Arizona Diamondbacks | Arizona Diamondbacks released 3B Melvin Mora. |
| Jun 30, 2011 | Signed | Carl Thomore | — | Colorado Rockies | Colorado Rockies signed Carl Thomore. |
| Jun 30, 2011 | Signed | Taylor Featherston | — | Colorado Rockies | Colorado Rockies signed SS Taylor Featherston. |
| Jun 30, 2011 | Signed | Chris Jensen | — | Colorado Rockies | Colorado Rockies signed Chris Jensen. |
| Jun 30, 2011 | Signed | Roberto Padilla | — | Colorado Rockies | Colorado Rockies signed LHP Roberto Padilla. |
| Jun 30, 2011 | Signed | Ben Hughes | — | Colorado Rockies | Colorado Rockies signed RHP Ben Hughes. |
| Jun 30, 2011 | Signed | Jesse Meaux | — | Colorado Rockies | Colorado Rockies signed RHP Jesse Meaux. |
| Jun 30, 2011 | Signed | Patrick Johnson | — | Colorado Rockies | Colorado Rockies signed RHP Patrick Johnson. |
| Jun 30, 2011 | Trade | Bruce Billings | Colorado Rockies | Athletics | Oakland Athletics traded 2B Mark Ellis to Colorado Rockies for RHP Bruce Billings. |
| Jun 30, 2011 | Released | Adam Everett | — | Cleveland Guardians | Cleveland Indians released 3B Adam Everett. |
| Jun 30, 2011 | Trade | Mickey Storey | Athletics | Houston Astros | Oakland Athletics traded RHP Mickey Storey to Houston Astros. |
| Jun 30, 2011 | Signed as free agent | Joaquin Hinojosa | — | New York Yankees | New York Yankees signed free agent RHP Joaquin Hinojosa. |
| Jun 30, 2011 | Signed | Marcus Semien | — | Chicago White Sox | Chicago White Sox signed SS Marcus Semien. |
| Jun 30, 2011 | Signed | O'Koyea Dickson | — | Los Angeles Dodgers | Los Angeles Dodgers signed 1B O'Koyea Dickson. |
| Jun 30, 2011 | Signed | Malcolm Holland | — | Los Angeles Dodgers | Los Angeles Dodgers signed 2B Malcolm Holland. |
| Jun 30, 2011 | Signed | Clayton Blackburn | — | San Francisco Giants | San Francisco Giants signed RHP Clayton Blackburn. |
| Jun 30, 2011 | Signed as free agent | Sthervin Matos | — | Milwaukee Brewers | Milwaukee Brewers signed free agent 3B Sthervin Matos to a minor league contract. |
| Jun 29, 2011 | Signed | Ryan Hornback | — | Pittsburgh Pirates | Pittsburgh Pirates signed C Ryan Hornback. |
| Jun 29, 2011 | Released | Doug Davis | — | Chicago Cubs | Chicago Cubs released LHP Doug Davis. |
| Jun 29, 2011 | Released | Ryan Franklin | — | St. Louis Cardinals | St. Louis Cardinals released RHP Ryan Franklin. |
| Jun 29, 2011 | Signed | Kyle Simon | — | Baltimore Orioles | Baltimore Orioles signed RHP Kyle Simon. |
| Jun 29, 2011 | Signed | Dustin Ward | — | Baltimore Orioles | Baltimore Orioles signed LHP Dustin Ward. |
| Jun 29, 2011 | Signed | Tom Winegardner | — | Baltimore Orioles | Baltimore Orioles signed SS Tom Winegardner. |
| Jun 29, 2011 | Signed | Kenny Jackson | — | Miami Marlins | Florida Marlins signed 3B Kenny Jackson. |
| Jun 29, 2011 | Signed as free agent | Logan Kensing | — | New York Yankees | New York Yankees signed free agent RHP Logan Kensing to a minor league contract. |
| Jun 29, 2011 | Signed | Jaron Shepherd | — | Colorado Rockies | Colorado Rockies signed OF Jaron Shepherd. |
| Jun 29, 2011 | Signed | Scott Lyman | — | Miami Marlins | Florida Marlins signed RHP Scott Lyman. |
| Jun 29, 2011 | Signed as free agent | Michel Hernandez | — | Cleveland Guardians | Cleveland Indians signed free agent C Michel Hernandez to a minor league contract. |
| Jun 29, 2011 | Signed | Cody Winiarski | — | Chicago White Sox | Chicago White Sox signed RHP Cody Winiarski. |
| Jun 29, 2011 | Signed | Daniel Welch | — | Athletics | Oakland Athletics signed C Daniel Welch. |
| Jun 29, 2011 | Signed as free agent | Daniel Tiburcio | — | Toronto Blue Jays | Toronto Blue Jays signed free agent RHP Daniel Tiburcio to a minor league contract. |
| Jun 29, 2011 | Signed as free agent | Carlos Munoz | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent 1B Carlos Munoz to a minor league contract. |
| Jun 29, 2011 | Signed | Matthew Marquis | — | Boston Red Sox | Boston Red Sox signed OF Matthew Marquis. |
| Jun 29, 2011 | Signed as free agent | Jose Martinez | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Jose Martinez to a minor league contract. |
| Jun 29, 2011 | Signed as free agent | Raul Santana | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent SS Raul Santana to a minor league contract. |
| Jun 29, 2011 | Signed | Mark Pope | — | San Diego Padres | San Diego Padres signed RHP Mark Pope. |
| Jun 28, 2011 | Signed as free agent | Raul Padron | — | Cleveland Guardians | Cleveland Indians signed free agent 1B Raul Padron to a minor league contract. |
| Jun 28, 2011 | Signed | Dusty Robinson | — | Athletics | Oakland Athletics signed OF Dusty Robinson. |
| Jun 28, 2011 | Signed | Austin Booker | — | Athletics | Oakland Athletics signed 2B Austin Booker. |
| Jun 28, 2011 | Signed | Zachary Good | — | Boston Red Sox | Boston Red Sox signed LHP Zachary Good. |
| Jun 28, 2011 | Signed as free agent | J.C. Romero | — | Washington Nationals | Washington Nationals signed free agent LHP J.C. Romero to a minor league contract. |
| Jun 28, 2011 | Signed | Greg Holt | — | Washington Nationals | Washington Nationals signed RHP Greg Holt. |
| Jun 28, 2011 | Signed as free agent | Daniel Berlind | — | Chicago Cubs | Chicago Cubs signed free agent RHP Daniel Berlind to a minor league contract. |
| Jun 28, 2011 | Signed | C.J. Cron | — | Los Angeles Angels | Los Angeles Angels signed 1B C.J. Cron. |
| Jun 28, 2011 | Signed | Xorge Carrillo | — | New York Mets | New York Mets signed C Xorge Carrillo. |
| Jun 28, 2011 | Signed | Alex Valdez | — | Boston Red Sox | Boston Red Sox signed 3B Alex Valdez. |
| Jun 28, 2011 | Signed | Jake Floethe | — | Tampa Bay Rays | Tampa Bay Rays signed RHP Jake Floethe. |
| Jun 28, 2011 | Signed | JJ Ethel | — | Los Angeles Dodgers | Los Angeles Dodgers signed C JJ Ethel. |
| Jun 28, 2011 | Signed | Will West | — | Milwaukee Brewers | Milwaukee Brewers signed LHP Will West. |
| Jun 28, 2011 | Signed | Ricardo Guillen | — | Toronto Blue Jays | Toronto Blue Jays signed SS Ricardo Guillen. |
| Jun 28, 2011 | Signed | Javier Berroa | — | Pittsburgh Pirates | Pittsburgh Pirates signed RHP Javier Berroa. |
| Jun 28, 2011 | Signed | Jose Garcia | — | Pittsburgh Pirates | Pittsburgh Pirates signed RHP Jose Garcia. |
| Jun 28, 2011 | Signed | Claudio Bautista | — | Cleveland Guardians | Cleveland Indians signed SS Claudio Bautista. |
| Jun 28, 2011 | Signed as free agent | Jesus De Los Santos | — | Washington Nationals | Washington Nationals signed free agent RHP Jesus De Los Santos to a minor league contract. |
| Jun 27, 2011 | Signed as free agent | Cory Hall | — | Kansas City Royals | Kansas City Royals signed free agent RHP Cory Hall to a minor league contract. |
| Jun 27, 2011 | Signed as free agent | Steven Brooks | — | Kansas City Royals | Kansas City Royals signed free agent OF Steven Brooks to a minor league contract. |
| Jun 27, 2011 | Signed as free agent | Justin Fradejas | — | Kansas City Royals | Kansas City Royals signed free agent OF Justin Fradejas to a minor league contract. |
| Jun 27, 2011 | Signed as free agent | Derek Hamblen | — | Kansas City Royals | Kansas City Royals signed free agent 2B Derek Hamblen to a minor league contract. |
| Jun 27, 2011 | Signed | Jonathan Martinez | — | Los Angeles Dodgers | Los Angeles Dodgers signed Jonathan Martinez. |
| Jun 27, 2011 | Signed | Ronald Dominguez | — | Seattle Mariners | Seattle Mariners signed RHP Ronald Dominguez. |
| Jun 27, 2011 | Signed | Matt Lane | — | Chicago White Sox | Chicago White Sox signed LHP Matt Lane. |
| Jun 27, 2011 | Signed | Jesse Wierzbicki | — | Houston Astros | Houston Astros signed IF Jesse Wierzbicki. |
| Jun 27, 2011 | Signed | Drew Gagnon | — | Milwaukee Brewers | Milwaukee Brewers signed RHP Drew Gagnon. |
| Jun 27, 2011 | Signed | Nick Ramirez | — | Milwaukee Brewers | Milwaukee Brewers signed 1B Nick Ramirez. |
| Jun 27, 2011 | Signed | Julio Torres | — | Minnesota Twins | Minnesota Twins signed 2B Julio Torres. |
| Jun 27, 2011 | Signed | Dereck Rodríguez | — | Minnesota Twins | Minnesota Twins signed OF Dereck Rodriguez. |
| Jun 27, 2011 | Signed | Nick Fleece | — | Cincinnati Reds | Cincinnati Reds signed RHP Nick Fleece. |
| Jun 27, 2011 | Signed | Daniel Cropper | — | San Diego Padres | San Diego Padres signed RHP Daniel Cropper. |
| Jun 27, 2011 | Signed as free agent | Doug Bream | — | Baltimore Orioles | Baltimore Orioles signed free agent 1B Doug Bream to a minor league contract. |
| Jun 27, 2011 | Signed | Ryan Kemp | — | Cincinnati Reds | Cincinnati Reds signed Ryan Kemp. |
| Jun 26, 2011 | Signed | Cory Mazzoni | — | New York Mets | New York Mets signed RHP Cory Mazzoni. |
| Jun 26, 2011 | Signed | Dutch Deol | — | St. Louis Cardinals | St. Louis Cardinals signed OF Dutch Deol. |
| Jun 26, 2011 | Signed | Kevin Gonzalez | — | Houston Astros | Houston Astros signed C Kevin Gonzalez. |
| Jun 26, 2011 | Signed as free agent | Will Krasne | — | Cleveland Guardians | Cleveland Indians signed free agent RHP Will Krasne to a minor league contract. |
| Jun 26, 2011 | Signed | Steve Martin | — | Houston Astros | Houston Astros signed RHP Steve Martin. |
| Jun 26, 2011 | Signed as free agent | Ben Copeland | — | Cleveland Guardians | Cleveland Indians signed free agent CF Ben Copeland to a minor league contract. |
| Jun 26, 2011 | Signed | Jack Leathersich | — | New York Mets | New York Mets signed LHP Jack Leathersich. |
| Jun 25, 2011 | Signed as free agent | Kenny Miramontes | — | Philadelphia Phillies | Philadelphia Phillies signed free agent SS Kenny Miramontes to a minor league contract. |
| Jun 25, 2011 | Signed | Kolten Wong | — | St. Louis Cardinals | St. Louis Cardinals signed 2B Kolten Wong. |
| Jun 25, 2011 | Signed | Kentrell Hill | — | San Francisco Giants | San Francisco Giants signed CF Kentrell Hill. |
| Jun 25, 2011 | Signed | Randy Fontanez | — | New York Mets | New York Mets signed RHP Randy Fontanez. |
| Jun 25, 2011 | Signed | Johnny Holtman | — | Los Angeles Angels | Los Angeles Angels signed RHP Johnny Holtman. |
| Jun 25, 2011 | Signed | Demondre Arnold | — | San Francisco Giants | San Francisco Giants signed RHP Demondre Arnold. |
| Jun 24, 2011 | Signed | Jordan Cooper | — | Pittsburgh Pirates | Pittsburgh Pirates signed RHP Jordan Cooper. |
| Jun 24, 2011 | Released | J.C. Romero | — | Philadelphia Phillies | Philadelphia Phillies released LHP J.C. Romero. |
| Jun 24, 2011 | Signed as free agent | Tommy Palica | — | Philadelphia Phillies | Philadelphia Phillies signed free agent LHP Tommy Palica to a minor league contract. |
| Jun 24, 2011 | Signed | James Nygren | — | Miami Marlins | Florida Marlins signed RHP James Nygren. |
| Jun 24, 2011 | Signed | Trent Howard | — | Baltimore Orioles | Baltimore Orioles signed LHP Trent Howard. |
| Jun 24, 2011 | Signed | Kelby Tomlinson | — | San Francisco Giants | San Francisco Giants signed SS Kelby Tomlinson. |
| Jun 24, 2011 | Signed | Frank Del Valle | — | Chicago Cubs | Chicago Cubs signed LHP Frank Del Valle. |
| Jun 24, 2011 | Signed | Nick Lee | — | Washington Nationals | Washington Nationals signed LHP Nick Lee. |
| Jun 24, 2011 | Signed | Lenny Linsky | — | Tampa Bay Rays | Tampa Bay Rays signed RHP Lenny Linsky. |
| Jun 24, 2011 | Signed | Devin Jones | — | Baltimore Orioles | Baltimore Orioles signed RHP Devin Jones. |
| Jun 24, 2011 | Signed as free agent | Kevin Quaranto | — | Philadelphia Phillies | Philadelphia Phillies signed free agent C Kevin Quaranto to a minor league contract. |
| Jun 24, 2011 | Signed | Carlos Gomez | — | Baltimore Orioles | Baltimore Orioles signed LHP Carlos Gomez. |
| Jun 24, 2011 | Signed | Jeff Johnson | — | Cleveland Guardians | Cleveland Indians signed RHP Jeff Johnson. |
| Jun 24, 2011 | Signed as free agent | Wei-Chung Wang | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent Wei-Chung Wang. |
| Jun 23, 2011 | Signed as free agent | Mike Lamb | — | New York Yankees | New York Yankees signed free agent 1B Mike Lamb to a minor league contract. |
| Jun 23, 2011 | Signed as free agent | Terry Tiffee | — | New York Yankees | New York Yankees signed free agent 3B Terry Tiffee to a minor league contract. |
| Jun 23, 2011 | Signed | Kramer Champlin | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Kramer Champlin. |
| Jun 23, 2011 | Signed | Mike Perconte | — | Houston Astros | Houston Astros signed RHP Mike Perconte. |
| Jun 23, 2011 | Signed as free agent | James Birmingham | — | Philadelphia Phillies | Philadelphia Phillies signed free agent LHP James Birmingham to a minor league contract. |
| Jun 23, 2011 | Signed as free agent | Rye Davis | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Rye Davis to a minor league contract. |
| Jun 23, 2011 | Signed | Mike Wright Jr. | — | Baltimore Orioles | Baltimore Orioles signed RHP Mike Wright. |
| Jun 23, 2011 | Signed | Jeff Ames | — | Tampa Bay Rays | Tampa Bay Rays signed RHP Jeff Ames. |
| Jun 23, 2011 | Signed | Jake Hager | — | Tampa Bay Rays | Tampa Bay Rays signed SS Jake Hager. |
| Jun 23, 2011 | Signed | Matty Ott | — | Boston Red Sox | Boston Red Sox signed RHP Matty Ott. |
| Jun 23, 2011 | Signed | Joe Holtmeyer | — | Boston Red Sox | Boston Red Sox signed RHP Joe Holtmeyer. |
| Jun 23, 2011 | Signed as free agent | Edgar Rodriguez | — | New York Mets | New York Mets signed free agent RHP Edgar Rodriguez to a minor league contract. |
| Jun 23, 2011 | Signed as free agent | Freiter Marte | — | New York Yankees | New York Yankees signed free agent OF Freiter Marte to a minor league contract. |
| Jun 23, 2011 | Signed as free agent | Marlin Almonte | — | Philadelphia Phillies | Philadelphia Phillies signed free agent OF Marlin Almonte to a minor league contract. |
| Jun 23, 2011 | Signed | Victor Jean | — | Miami Marlins | Florida Marlins signed RHP Victor Jean. |
| Jun 23, 2011 | Signed | Freddie Cabrera | — | Los Angeles Dodgers | Los Angeles Dodgers signed RHP Freddie Cabrera. |
| Jun 23, 2011 | Signed | Joe Terry | — | Cincinnati Reds | Cincinnati Reds signed 3B Joe Terry. |
| Jun 23, 2011 | Signed as free agent | Francisco Villa | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent RHP Francisco Villa to a minor league contract. |
| Jun 23, 2011 | Signed as free agent | Drew Zizinia | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Drew Zizinia to a minor league contract. |
| Jun 23, 2011 | Signed as free agent | Arturo Maltos-Garcia | — | Chicago Cubs | Chicago Cubs signed free agent RHP Arturo Maltos-Garcia to a minor league contract. |
| Jun 22, 2011 | Released | Miguel Batista | — | St. Louis Cardinals | St. Louis Cardinals released RHP Miguel Batista. |
| Jun 22, 2011 | Signed | Josh Poytress | — | Pittsburgh Pirates | Pittsburgh Pirates signed LHP Josh Poytress. |
| Jun 22, 2011 | Signed as free agent | Aaron Dott | — | New York Yankees | New York Yankees signed free agent LHP Aaron Dott to a minor league contract. |
| Jun 22, 2011 | Signed as free agent | Steve Evarts | — | New York Yankees | New York Yankees signed free agent LHP Steve Evarts to a minor league contract. |
| Jun 22, 2011 | Signed | Joe Musgrove | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Joe Musgrove. |
| Jun 22, 2011 | Signed | Matt Newman | — | Toronto Blue Jays | Toronto Blue Jays signed OF Matt Newman. |
| Jun 22, 2011 | Signed | Austin Barnes | — | Miami Marlins | Florida Marlins signed C Austin Barnes. |
| Jun 22, 2011 | Signed | David Goforth | — | Milwaukee Brewers | Milwaukee Brewers signed RHP David Goforth. |
| Jun 22, 2011 | Signed | Timothy Kiley | — | Chicago White Sox | Chicago White Sox signed RHP Timothy Kiley. |
| Jun 22, 2011 | Signed | Matt Curtis | — | Cleveland Guardians | Cleveland Indians signed RHP Matt Curtis. |
| Jun 22, 2011 | Signed | Jose Polanco | — | Tampa Bay Rays | Tampa Bay Rays signed RHP Jose Polanco. |
| Jun 22, 2011 | Signed | Randy Gonzalez | — | Miami Marlins | Florida Marlins signed LF Randy Gonzalez. |
| Jun 22, 2011 | Signed as free agent | Spencer Dickinson | — | Cincinnati Reds | Cincinnati Reds signed free agent OF Spencer Dickinson to a minor league contract. |
| Jun 22, 2011 | Signed as free agent | Jason Postill | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Jason Postill to a minor league contract. |
| Jun 22, 2011 | Signed | Brandon Martin | — | Tampa Bay Rays | Tampa Bay Rays signed SS Brandon Martin. |
| Jun 22, 2011 | Signed | A.J. Holland | — | Atlanta Braves | Atlanta Braves signed RHP A.J. Holland. |
| Jun 22, 2011 | Signed | Dustin Houle | — | Milwaukee Brewers | Milwaukee Brewers signed 3B Dustin Houle. |
| Jun 22, 2011 | Signed as free agent | Doxon Brochero | — | New York Mets | New York Mets signed free agent RHP Doxon Brochero to a minor league contract. |
| Jun 21, 2011 | Released | Jorge Cantu | — | San Diego Padres | San Diego Padres released 1B Jorge Cantu. |
| Jun 21, 2011 | Signed | David Jagoditsh | — | Pittsburgh Pirates | Pittsburgh Pirates signed RHP David Jagoditsh. |
| Jun 21, 2011 | Signed | Tyler Higgins | — | Miami Marlins | Florida Marlins signed RHP Tyler Higgins. |
| Jun 21, 2011 | Signed | Connor Burke | — | Miami Marlins | Florida Marlins signed 2B Connor Burke. |
| Jun 21, 2011 | Signed | James Harris | — | Tampa Bay Rays | Tampa Bay Rays signed OF James Harris. |
| Jun 21, 2011 | Signed | Cameron Edman | — | Baltimore Orioles | Baltimore Orioles signed C Cameron Edman. |
| Jun 21, 2011 | Signed | Erik Miller | — | Cincinnati Reds | Cincinnati Reds signed RHP Erik Miller. |
| Jun 21, 2011 | Signed | Chris O'Brien | — | Los Angeles Dodgers | Los Angeles Dodgers signed C Chris O'Brien. |
| Jun 21, 2011 | Signed as free agent | Austin Brough | — | Philadelphia Phillies | Philadelphia Phillies signed free agent LHP Austin Brough to a minor league contract. |
| Jun 21, 2011 | Signed | Yunior De La Cruz | — | Cleveland Guardians | Cleveland Indians signed C Yunior De La Cruz. |
| Jun 20, 2011 | Signed | Kevan Smith | — | Chicago White Sox | Chicago White Sox signed C Kevan Smith. |
| Jun 20, 2011 | Signed | Andrew Virgili | — | Chicago White Sox | Chicago White Sox signed RHP Andrew Virgili. |
| Jun 20, 2011 | Signed | Chris Bassitt | — | Chicago White Sox | Chicago White Sox signed RHP Chris Bassitt. |
| Jun 20, 2011 | Signed | Collin Kuhn | — | Chicago White Sox | Chicago White Sox signed OF Collin Kuhn. |
| Jun 20, 2011 | Signed | Bryan Blough | — | Chicago White Sox | Chicago White Sox signed RHP Bryan Blough. |
| Jun 20, 2011 | Signed | Grant Buckner | — | Chicago White Sox | Chicago White Sox signed 3B Grant Buckner. |
| Jun 20, 2011 | Signed | Jake Cose | — | Chicago White Sox | Chicago White Sox signed RHP Jake Cose. |
| Jun 20, 2011 | Signed | Kyle Robinson | — | Chicago White Sox | Chicago White Sox signed 1B Kyle Robinson. |
| Jun 20, 2011 | Signed | Michael Johnson | — | Chicago White Sox | Chicago White Sox signed SS Michael Johnson. |
| Jun 20, 2011 | Signed | Todd Kibby | — | Chicago White Sox | Chicago White Sox signed LHP Todd Kibby. |
| Jun 20, 2011 | Signed | Keegan Linza | — | Chicago White Sox | Chicago White Sox signed RHP Keegan Linza. |
| Jun 20, 2011 | Signed | Cory Farris | — | Chicago White Sox | Chicago White Sox signed OF Cory Farris. |
| Jun 20, 2011 | Signed as free agent | Tim Redding | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Tim Redding to a minor league contract. |
| Jun 20, 2011 | Signed as free agent | Ricardo Andres | — | Chicago White Sox | Chicago White Sox signed free agent RHP Ricardo Andres to a minor league contract. |
| Jun 20, 2011 | Signed as free agent | Brett Merkley | — | Chicago White Sox | Chicago White Sox signed free agent RHP Brett Merkley to a minor league contract. |
| Jun 20, 2011 | Signed | Jason Van Skike | — | Chicago White Sox | Chicago White Sox signed RHP Jason Van Skike. |
| Jun 20, 2011 | Signed | Mitchell Conner | — | Milwaukee Brewers | Milwaukee Brewers signed RHP Mitchell Conner. |
| Jun 20, 2011 | Signed | Greg Davis | — | Milwaukee Brewers | Milwaukee Brewers signed RHP Greg Davis. |
| Jun 20, 2011 | Signed | Michael Francisco | — | Milwaukee Brewers | Milwaukee Brewers signed LHP Michael Francisco. |
| Jun 20, 2011 | Signed | Elliot Glynn | — | Milwaukee Brewers | Milwaukee Brewers signed LHP Elliot Glynn. |
| Jun 20, 2011 | Signed | Daniel Keller | — | Milwaukee Brewers | Milwaukee Brewers signed RHP Daniel Keller. |
| Jun 20, 2011 | Signed | Casey Medlen | — | Milwaukee Brewers | Milwaukee Brewers signed RHP Casey Medlen. |
| Jun 20, 2011 | Signed | Adam Weisenburger | — | Milwaukee Brewers | Milwaukee Brewers signed C Adam Weisenburger. |
| Jun 20, 2011 | Signed | Shawn Pleffner | — | Washington Nationals | Washington Nationals signed OF Shawn Pleffner. |
| Jun 20, 2011 | Signed | Jalen Harris | — | Milwaukee Brewers | Milwaukee Brewers signed 3B Jalen Harris. |
| Jun 20, 2011 | Signed | Renaldo Jenkins | — | Milwaukee Brewers | Milwaukee Brewers signed SS Renaldo Jenkins. |
| Jun 20, 2011 | Signed | Malcolm Dowell | — | Milwaukee Brewers | Milwaukee Brewers signed OF Malcolm Dowell. |
| Jun 20, 2011 | Signed | Matthew Franco | — | Milwaukee Brewers | Milwaukee Brewers signed OF Matthew Franco. |
| Jun 20, 2011 | Signed | Steven McKinnon | — | Texas Rangers | Texas Rangers signed RHP Steven McKinnon. |
| Jun 20, 2011 | Signed | Jeremy Dobbs | — | Seattle Mariners | Seattle Mariners signed LHP Jeremy Dobbs. |
| Jun 20, 2011 | Signed | Bo Reeder | — | Seattle Mariners | Seattle Mariners signed RHP Bo Reeder. |
| Jun 20, 2011 | Signed | Alex Fuselier | — | Pittsburgh Pirates | Pittsburgh Pirates signed OF Alex Fuselier. |
| Jun 20, 2011 | Signed | Mike Jefferson | — | Pittsburgh Pirates | Pittsburgh Pirates signed LHP Mike Jefferson. |
| Jun 20, 2011 | Signed | Chris Lashmet | — | Pittsburgh Pirates | Pittsburgh Pirates signed 3B Chris Lashmet. |
| Jun 20, 2011 | Signed as free agent | Myles Duvall | — | Toronto Blue Jays | Toronto Blue Jays signed free agent RHP Myles Duvall to a minor league contract. |
| Jun 20, 2011 | Signed as free agent | Ian Kadish | — | Toronto Blue Jays | Toronto Blue Jays signed free agent RHP Ian Kadish to a minor league contract. |
| Jun 20, 2011 | Signed | Jon Lucas | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Jon Lucas. |
| Jun 20, 2011 | Signed as free agent | Ajay Meyer | — | Toronto Blue Jays | Toronto Blue Jays signed free agent RHP Ajay Meyer to a minor league contract. |
| Jun 20, 2011 | Signed as free agent | Chris Schaeffer | — | Toronto Blue Jays | Toronto Blue Jays signed free agent C Chris Schaeffer to a minor league contract. |
| Jun 20, 2011 | Signed | Daniel Bennett | — | Detroit Tigers | Detroit Tigers signed RHP Daniel Bennett. |
| Jun 20, 2011 | Signed as free agent | Javan Williams | — | Toronto Blue Jays | Toronto Blue Jays signed free agent OF Javan Williams to a minor league contract. |
| Jun 20, 2011 | Signed | Greg Nappo | — | Miami Marlins | Florida Marlins signed LHP Greg Nappo. |
| Jun 20, 2011 | Signed | Colton Murray | — | Philadelphia Phillies | Philadelphia Phillies signed RHP Colton Murray. |
| Jun 20, 2011 | Signed | Tyler Rahmatulla | — | St. Louis Cardinals | St. Louis Cardinals signed 2B Tyler Rahmatulla. |
| Jun 20, 2011 | Signed as free agent | Eric Binder | — | St. Louis Cardinals | St. Louis Cardinals signed free agent RHP Eric Binder to a minor league contract. |
| Jun 20, 2011 | Signed as free agent | Logan Billbrough | — | St. Louis Cardinals | St. Louis Cardinals signed free agent RHP Logan Billbrough to a minor league contract. |
| Jun 20, 2011 | Signed | Tyler Williams | — | Arizona Diamondbacks | Arizona Diamondbacks signed 3B Tyler Williams. |
| Jun 20, 2011 | Signed | Garrett Bolt | — | Los Angeles Dodgers | Los Angeles Dodgers signed RHP Garrett Bolt. |
| Jun 20, 2011 | Signed | Robert Chamra | — | Los Angeles Dodgers | Los Angeles Dodgers signed RHP Robert Chamra. |
| Jun 20, 2011 | Signed as free agent | Max Ramirez | — | San Francisco Giants | San Francisco Giants signed free agent C Max Ramirez to a minor league contract. |
| Jun 20, 2011 | Signed | Mike McGee | — | Seattle Mariners | Seattle Mariners signed OF Mike McGee. |
| Jun 20, 2011 | Signed | Jordan Pries | — | Seattle Mariners | Seattle Mariners signed RHP Jordan Pries. |
| Jun 20, 2011 | Signed | Jordan Smith | — | Cleveland Guardians | Cleveland Indians signed OF Jordan Smith. |
| Jun 20, 2011 | Signed | Greggory Downing | — | Los Angeles Dodgers | Los Angeles Dodgers signed LHP Greggory Downing. |
| Jun 20, 2011 | Signed | Stefan Jarrin | — | Los Angeles Dodgers | Los Angeles Dodgers signed 2B Stefan Jarrin. |
| Jun 20, 2011 | Signed | Kevin Thompson | — | Los Angeles Dodgers | Los Angeles Dodgers signed SS Kevin Thompson. |
| Jun 20, 2011 | Signed | Joe Winker | — | Los Angeles Dodgers | Los Angeles Dodgers signed OF Joe Winker. |
| Jun 20, 2011 | Signed as free agent | Mike Lebo | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Mike Lebo to a minor league contract. |
| Jun 20, 2011 | Signed | Shane Waller | — | Los Angeles Angels | Los Angeles Angels signed RHP Shane Waller. |
| Jun 20, 2011 | Signed as free agent | Jairo Munoz | — | Kansas City Royals | Kansas City Royals signed free agent RHP Jairo Munoz to a minor league contract. |
| Jun 19, 2011 | Signed | Zach Fowler | — | Baltimore Orioles | Baltimore Orioles signed LHP Zach Fowler. |
| Jun 19, 2011 | Signed | Matt Taylor | — | Baltimore Orioles | Baltimore Orioles signed LHP Matt Taylor. |
| Jun 19, 2011 | Signed | Jerome Pena | — | Baltimore Orioles | Baltimore Orioles signed 2B Jerome Pena. |
| Jun 19, 2011 | Signed as free agent | J.R. Krogstad | — | Minnesota Twins | Minnesota Twins signed free agent RHP J.R. Krogstad to a minor league contract. |
| Jun 19, 2011 | Signed as free agent | Robert Lake | — | New York Mets | New York Mets signed free agent RHP Robert Lake to a minor league contract. |
| Jun 19, 2011 | Signed | Paul Cusick | — | Philadelphia Phillies | Philadelphia Phillies signed RHP Paul Cusick. |
| Jun 19, 2011 | Signed | Ian Durham | — | Philadelphia Phillies | Philadelphia Phillies signed RHP Ian Durham. |
| Jun 19, 2011 | Signed | Andre Kinder | — | Philadelphia Phillies | Philadelphia Phillies signed LHP Andre Kinder. |
| Jun 19, 2011 | Signed | Richard Ruff | — | New York Mets | New York Mets signed RHP Richard Ruff. |
| Jun 19, 2011 | Signed | Jared West | — | New York Mets | New York Mets signed RHP Jared West. |
| Jun 19, 2011 | Signed as free agent | Luis Morales | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Luis Morales to a minor league contract. |
| Jun 19, 2011 | Signed | Edward Rohan | — | New York Mets | New York Mets signed C Edward Rohan. |
| Jun 19, 2011 | Signed | Josh Warner | — | Philadelphia Phillies | Philadelphia Phillies signed RHP Josh Warner. |
| Jun 19, 2011 | Signed | Ryan Hutson | — | New York Mets | New York Mets signed OF Ryan Hutson. |
| Jun 19, 2011 | Signed | Carlos Leyva | — | New York Mets | New York Mets signed SS Carlos Leyva. |
| Jun 19, 2011 | Signed | John Hill | — | Philadelphia Phillies | Philadelphia Phillies signed C John Hill. |
| Jun 19, 2011 | Signed | Logan Moore | — | Philadelphia Phillies | Philadelphia Phillies signed C Logan Moore. |
| Jun 19, 2011 | Signed | Matthew Holland | — | Philadelphia Phillies | Philadelphia Phillies signed IF Matthew Holland. |
| Jun 19, 2011 | Signed | Peter Lavin | — | Philadelphia Phillies | Philadelphia Phillies signed OF Peter Lavin. |
| Jun 19, 2011 | Signed | Michael Marshall | — | Philadelphia Phillies | Philadelphia Phillies signed 1B Michael Marshall. |
| Jun 19, 2011 | Signed | Reynolds Parthemore | — | Boston Red Sox | Boston Red Sox signed RHP Reynolds Parthemore. |
| Jun 19, 2011 | Signed as free agent | Michael Olmsted | — | Boston Red Sox | Boston Red Sox signed free agent RHP Michael Olmsted to a minor league contract. |
| Jun 19, 2011 | Signed | Drew Hillman | — | Philadelphia Phillies | Philadelphia Phillies signed 3B Drew Hillman. |
| Jun 19, 2011 | Signed as free agent | Nathan Woods | — | Miami Marlins | Florida Marlins signed free agent OF Nathan Woods to a minor league contract. |
| Jun 19, 2011 | Signed | Gabriel Encinas | — | New York Yankees | New York Yankees signed RHP Gabriel Encinas. |
| Jun 19, 2011 | Signed | Taylor Morton | — | New York Yankees | New York Yankees signed RHP Taylor Morton. |
| Jun 19, 2011 | Signed as free agent | Tyson Blaser | — | New York Mets | New York Mets signed free agent C Tyson Blaser to a minor league contract. |
| Jun 19, 2011 | Signed as free agent | Jon Hurst | — | New York Yankees | New York Yankees signed free agent C Jon Hurst to a minor league contract. |
| Jun 19, 2011 | Signed | Jake Anderson | — | New York Yankees | New York Yankees signed IF Jake Anderson. |
| Jun 19, 2011 | Signed as free agent | Jonathan Myers | — | Miami Marlins | Florida Marlins signed free agent SS Jonathan Myers to a minor league contract. |
| Jun 19, 2011 | Signed | Colby Broussard | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Colby Broussard. |
| Jun 19, 2011 | Signed | Tucker Jensen | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Tucker Jensen. |
| Jun 19, 2011 | Signed | Adaric Kelly | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Adaric Kelly. |
| Jun 19, 2011 | Signed as free agent | Thomas Diamond | — | Minnesota Twins | Minnesota Twins signed free agent RHP Thomas Diamond to a minor league contract. |
| Jun 19, 2011 | Signed | Jorge Navarrete | — | Toronto Blue Jays | Toronto Blue Jays signed LHP Jorge Navarrete. |
| Jun 19, 2011 | Signed | Michael Knox | — | St. Louis Cardinals | St. Louis Cardinals signed IF Michael Knox. |
| Jun 19, 2011 | Signed | Chris Roman | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Chris Roman. |
| Jun 19, 2011 | Signed | Randall Thompson | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Randall Thompson. |
| Jun 19, 2011 | Signed | George Carroll | — | Toronto Blue Jays | Toronto Blue Jays signed C George Carroll. |
| Jun 19, 2011 | Signed | Lance Jeffries | — | St. Louis Cardinals | St. Louis Cardinals signed OF Lance Jeffries. |
| Jun 19, 2011 | Signed | Seth Conner | — | Toronto Blue Jays | Toronto Blue Jays signed IF Seth Conner. |
| Jun 19, 2011 | Signed | Adam Ehrlich | — | St. Louis Cardinals | St. Louis Cardinals signed C Adam Ehrlich. |
| Jun 19, 2011 | Signed | Kevin Patterson | — | Toronto Blue Jays | Toronto Blue Jays signed 1B Kevin Patterson. |
| Jun 19, 2011 | Signed | Chris Peters | — | Toronto Blue Jays | Toronto Blue Jays signed SS Chris Peters. |
| Jun 19, 2011 | Signed | Jorge Vega-Rosado | — | Toronto Blue Jays | Toronto Blue Jays signed SS Jorge Vega-Rosado. |
| Jun 19, 2011 | Signed | Eric Arce | — | Toronto Blue Jays | Toronto Blue Jays signed OF Eric Arce. |
| Jun 19, 2011 | Signed | Nico Taylor | — | Toronto Blue Jays | Toronto Blue Jays signed OF Nico Taylor. |
| Jun 19, 2011 | Signed | Brandon Creath | — | St. Louis Cardinals | St. Louis Cardinals signed RHP Brandon Creath. |
| Jun 19, 2011 | Signed | Madison Boer | — | Minnesota Twins | Minnesota Twins signed RHP Madison Boer. |
| Jun 19, 2011 | Signed | Tyler Melling | — | St. Louis Cardinals | St. Louis Cardinals signed LHP Tyler Melling. |
| Jun 19, 2011 | Signed | Steven Evans | — | Minnesota Twins | Minnesota Twins signed LHP Steven Evans. |
| Jun 19, 2011 | Signed | Steven Gruver | — | Minnesota Twins | Minnesota Twins signed LHP Steven Gruver. |
| Jun 19, 2011 | Signed | David Hurlbut | — | Minnesota Twins | Minnesota Twins signed LHP David Hurlbut. |
| Jun 19, 2011 | Signed | Corey Kimes | — | Minnesota Twins | Minnesota Twins signed LHP Corey Kimes. |
| Jun 19, 2011 | Signed | Brad Watson | — | St. Louis Cardinals | St. Louis Cardinals signed RHP Brad Watson. |
| Jun 19, 2011 | Signed | A.J. Pettersen | — | Minnesota Twins | Minnesota Twins signed SS Adam Pettersen. |
| Jun 19, 2011 | Signed | Tyler Koelling | — | Minnesota Twins | Minnesota Twins signed OF Tyler Koelling. |
| Jun 19, 2011 | Signed | Alex Gillingham | — | Colorado Rockies | Colorado Rockies signed RHP Alex Gillingham. |
| Jun 19, 2011 | Signed | Kyle Roliard | — | Colorado Rockies | Colorado Rockies signed LHP Kyle Roliard. |
| Jun 19, 2011 | Signed | Dan Winkler | — | Colorado Rockies | Colorado Rockies signed RHP Daniel Winkler. |
| Jun 19, 2011 | Signed as free agent | Jason Stephens | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Jason Stephens to a minor league contract. |
| Jun 19, 2011 | Signed as free agent | Jose Zapata | — | Cleveland Guardians | Cleveland Indians signed free agent RHP Jose Zapata to a minor league contract. |
| Jun 19, 2011 | Signed as free agent | Kelvin Santana | — | Houston Astros | Houston Astros signed free agent RHP Kelvin Santana to a minor league contract. |
| Jun 19, 2011 | Signed as free agent | Jerome Williams | — | Los Angeles Angels | Los Angeles Angels signed free agent Jerome Williams. |
| Jun 19, 2011 | Signed | Chad Zurcher | — | New York Mets | New York Mets signed SS Chad Zurcher. |
| Jun 19, 2011 | Signed | Dustin Lawley | — | New York Mets | New York Mets signed OF Dustin Lawley. |
| Jun 19, 2011 | Signed | Greg Pron | — | New York Mets | New York Mets signed OF Greg Pron. |
| Jun 19, 2011 | Signed | Chasen Bradford | — | New York Mets | New York Mets signed RHP Chase Bradford. |
| Jun 19, 2011 | Signed | Dustin Emmons | — | New York Mets | New York Mets signed RHP Dustin Emmons. |
| Jun 19, 2011 | Signed | Seth Lugo | — | New York Mets | New York Mets signed RHP Seth Lugo. |
| Jun 19, 2011 | Signed | Mark Picca | — | New York Mets | New York Mets signed LHP Mark Picca. |
| Jun 19, 2011 | Signed | Zach Wilson | — | New York Yankees | New York Yankees signed 1B Zach Wilson. |
| Jun 19, 2011 | Signed | David Rollins | — | Toronto Blue Jays | Toronto Blue Jays signed LHP David Rollins. |
| Jun 19, 2011 | Signed | Kevin Pillar | — | Toronto Blue Jays | Toronto Blue Jays signed OF Kevin Pillar. |
| Jun 19, 2011 | Signed | Aaron Muñoz | — | Toronto Blue Jays | Toronto Blue Jays signed C Aaron Munoz. |
| Jun 19, 2011 | Signed | Arik Sikula | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Arik Sikula. |
| Jun 19, 2011 | Signed | Les Williams | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Les Williams. |
| Jun 19, 2011 | Signed | Cody Bartlett | — | Toronto Blue Jays | Toronto Blue Jays signed SS Cody Bartlett. |
| Jun 19, 2011 | Signed | Joshua Alvarado | — | Los Angeles Angels | Los Angeles Angels signed RHP Joshua Alvarado. |
| Jun 19, 2011 | Signed | Frank DeJiulio | — | Los Angeles Angels | Los Angeles Angels signed RHP Frank DeJiulio. |
| Jun 19, 2011 | Signed as free agent | Brian Edelen | — | Kansas City Royals | Kansas City Royals signed free agent RHP Brian Edelen to a minor league contract. |
| Jun 19, 2011 | Signed | Brandon Efferson | — | Los Angeles Angels | Los Angeles Angels signed RHP Brandon Efferson. |
| Jun 19, 2011 | Signed | Stephen Lumpkins | — | Kansas City Royals | Kansas City Royals signed LHP Stephen Lumpkins. |
| Jun 19, 2011 | Signed | Eric Alessio | — | Cincinnati Reds | Cincinnati Reds signed RHP Eric Alessio. |
| Jun 19, 2011 | Signed | Cesar Ogando | — | Kansas City Royals | Kansas City Royals signed LHP Cesar Ogando. |
| Jun 19, 2011 | Signed | Joey Krehbiel | — | Los Angeles Angels | Los Angeles Angels signed Joey Krehbiel. |
| Jun 19, 2011 | Signed | John Leonard | — | Los Angeles Angels | Los Angeles Angels signed RHP John Leonard. |
| Jun 19, 2011 | Signed | Brandon Lodge | — | Los Angeles Angels | Los Angeles Angels signed RHP Brandon Lodge. |
| Jun 19, 2011 | Signed | Drew Cisco | — | Cincinnati Reds | Cincinnati Reds signed RHP Drew Cisco. |
| Jun 19, 2011 | Signed | Brandon McNelis | — | Los Angeles Angels | Los Angeles Angels signed RHP Brandon McNelis. |
| Jun 19, 2011 | Signed | Jacob Negrete | — | Los Angeles Angels | Los Angeles Angels signed RHP Jacob Negrete. |
| Jun 19, 2011 | Signed | Stephen Tromblee | — | Los Angeles Angels | Los Angeles Angels signed LHP Stephen Tromblee. |
| Jun 19, 2011 | Signed | Phillip Bauer | — | Cincinnati Reds | Cincinnati Reds signed SS Phillip Bauer. |
| Jun 19, 2011 | Signed | Jerrell Allen | — | Kansas City Royals | Kansas City Royals signed OF Jerrell Allen. |
| Jun 19, 2011 | Signed | Brandon Dailey | — | Cincinnati Reds | Cincinnati Reds signed SS Brandon Dailey. |
| Jun 19, 2011 | Signed | Jett Bandy | — | Los Angeles Angels | Los Angeles Angels signed C Jett Bandy. |
| Jun 19, 2011 | Signed | Juan Perez | — | Cincinnati Reds | Cincinnati Reds signed 2B Juan Perez. |
| Jun 19, 2011 | Signed | Kyle Mahoney | — | Los Angeles Angels | Los Angeles Angels signed C Kyle Mahoney. |
| Jun 19, 2011 | Signed | Matt Scioscia | — | Los Angeles Angels | Los Angeles Angels signed C Matt Scioscia. |
| Jun 19, 2011 | Signed | Jon Matthews | — | Cincinnati Reds | Cincinnati Reds signed OF Jon Matthews. |
| Jun 19, 2011 | Signed | Brian Hernandez | — | Los Angeles Angels | Los Angeles Angels signed 3B Brian Hernandez. |
| Jun 19, 2011 | Signed | Jason Nappi | — | Los Angeles Angels | Los Angeles Angels signed 3B Jason Nappi. |
| Jun 19, 2011 | Signed | Joel Bender | — | Cincinnati Reds | Cincinnati Reds signed LHP Joel Bender. |
| Jun 19, 2011 | Signed | Landis Ware | — | Los Angeles Angels | Los Angeles Angels signed IF Landis Ware. |
| Jun 19, 2011 | Signed | Tony Cingrani | — | Cincinnati Reds | Cincinnati Reds signed LHP Tony Cingrani. |
| Jun 19, 2011 | Signed | Jackson Whitley | — | Los Angeles Angels | Los Angeles Angels signed 1B Jackson Whitley. |
| Jun 19, 2011 | Signed | Justice French | — | Cincinnati Reds | Cincinnati Reds signed RHP Justice French. |
| Jun 19, 2011 | Signed | Zach Borenstein | — | Los Angeles Angels | Los Angeles Angels signed OF Zach Borenstein. |
| Jun 19, 2011 | Signed | Carlos Gonzalez | — | Cincinnati Reds | Cincinnati Reds signed RHP Carlos Gonzalez. |
| Jun 19, 2011 | Signed | Chris Giovinazzo | — | Los Angeles Angels | Los Angeles Angels signed OF Chris Giovinazzo. |
| Jun 19, 2011 | Signed | Chris Joyce | — | Cincinnati Reds | Cincinnati Reds signed LHP Chris Joyce. |
| Jun 19, 2011 | Signed | Jimmy Moran | — | Cincinnati Reds | Cincinnati Reds signed RHP Jimmy Moran. |
| Jun 19, 2011 | Signed | Andy Workman | — | Los Angeles Angels | Los Angeles Angels signed OF Andy Workman. |
| Jun 19, 2011 | Signed | Randall Yard | — | Cincinnati Reds | Cincinnati Reds signed RHP Randall Yard. |
| Jun 19, 2011 | Signed | Elliott Blair | — | San Francisco Giants | San Francisco Giants signed OF Elliott Blair. |
| Jun 19, 2011 | Signed | Eldred Barnett | — | San Francisco Giants | San Francisco Giants signed OF Eldred Barnett. |
| Jun 19, 2011 | Signed | Garrett Buechele | — | San Francisco Giants | San Francisco Giants signed 3B Garrett Buechele. |
| Jun 19, 2011 | Signed | Bryan Nicholson | — | San Francisco Giants | San Francisco Giants signed 1B Bryan Nicholson. |
| Jun 19, 2011 | Signed | Shane Boras | — | Athletics | Oakland Athletics signed 2B Shane Boras. |
| Jun 19, 2011 | Signed | Ben Thomas | — | San Francisco Giants | San Francisco Giants signed 1B Ben Thomas. |
| Jun 19, 2011 | Signed | Myles Schroder | — | San Francisco Giants | San Francisco Giants signed C Myles Schroder. |
| Jun 19, 2011 | Signed | Paul Davis | — | San Francisco Giants | San Francisco Giants signed RHP Paul Davis. |
| Jun 19, 2011 | Signed | Brian Maloney | — | San Francisco Giants | San Francisco Giants signed LHP Brian Maloney. |
| Jun 19, 2011 | Signed | Danny Sandbrink | — | San Francisco Giants | San Francisco Giants signed Danny Sandbrink. |
| Jun 19, 2011 | Signed | P.J. Francescon | — | Chicago Cubs | Chicago Cubs signed RHP P.J. Francescon. |
| Jun 19, 2011 | Signed | Pete LeVitt | — | Chicago Cubs | Chicago Cubs signed RHP Pete LeVitt. |
| Jun 19, 2011 | Signed | James Pugliese | — | Chicago Cubs | Chicago Cubs signed RHP James Pugliese. |
| Jun 19, 2011 | Signed | Cody Gabella | — | San Diego Padres | San Diego Padres signed SS Cody Gabella. |
| Jun 19, 2011 | Signed | Rashaad Ingram | — | San Diego Padres | San Diego Padres signed 2B Rashaad Ingram. |
| Jun 19, 2011 | Signed | Scott Weismann | — | Chicago Cubs | Chicago Cubs signed RHP Scott Weismann. |
| Jun 19, 2011 | Signed | Ross Kwan | — | Chicago Cubs | Chicago Cubs signed C Ross Kwan. |
| Jun 19, 2011 | Signed | Norberto Susini | — | Seattle Mariners | Seattle Mariners signed C Norberto Susini. |
| Jun 19, 2011 | Signed | Raffy Lopez | — | Chicago Cubs | Chicago Cubs signed C Rafael Lopez. |
| Jun 19, 2011 | Signed | Ryan Durrence | — | Chicago Cubs | Chicago Cubs signed 1B Ryan Durrence. |
| Jun 19, 2011 | Signed | Travis Garcia | — | Chicago Cubs | Chicago Cubs signed IF Travis Garcia. |
| Jun 19, 2011 | Signed | Reggie Lawson | — | Seattle Mariners | Seattle Mariners signed OF Reggie Lawson. |
| Jun 19, 2011 | Signed as free agent | Rodney Daal | — | San Diego Padres | San Diego Padres signed free agent C Rodney Daal to a minor league contract. |
| Jun 19, 2011 | Signed | Kenny Socorro | — | Chicago Cubs | Chicago Cubs signed SS Kenny Socorro. |
| Jun 19, 2011 | Signed | David Holman | — | Seattle Mariners | Seattle Mariners signed RHP David Holman. |
| Jun 19, 2011 | Signed | Benjamin Cornwell | — | Seattle Mariners | Seattle Mariners signed RHP Benjamin Cornwell. |
| Jun 19, 2011 | Signed | Kendall Radcliffe | — | Texas Rangers | Texas Rangers signed OF Kendall Radcliffe. |
| Jun 19, 2011 | Signed | Brandon Plotz | — | Seattle Mariners | Seattle Mariners signed RHP Brandon Plotz. |
| Jun 19, 2011 | Signed | Ernesto Zaragoza | — | Seattle Mariners | Seattle Mariners signed RHP Ernesto Zaragoza. |
| Jun 19, 2011 | Signed | Dennis O'Grady | — | San Diego Padres | San Diego Padres signed RHP Dennis O'Grady. |
| Jun 19, 2011 | Signed | José Ramírez | — | Cleveland Guardians | Cleveland Indians signed SS Jose Ramirez. |
| Jun 19, 2011 | Signed as free agent | Josh McKeon | — | Cleveland Guardians | Cleveland Indians signed free agent RHP Josh McKeon to a minor league contract. |
| Jun 19, 2011 | Signed | Luis De Jesus | — | Cleveland Guardians | Cleveland Indians signed RHP Luis DeJesus. |
| Jun 19, 2011 | Signed | Ryan Battaglia | — | Cleveland Guardians | Cleveland Indians signed C Ryan Battaglia. |
| Jun 19, 2011 | Signed | Martin Cervenka | — | Cleveland Guardians | Cleveland Indians signed C Martin Cervenka. |
| Jun 19, 2011 | Signed | Mitch Nilsson | — | Cleveland Guardians | Cleveland Indians signed C Mitch Nilsson. |
| Jun 19, 2011 | Signed | Andrew Campbell | — | Cleveland Guardians | Cleveland Indians signed 2B Andrew Campbell. |
| Jun 19, 2011 | Signed | Chia-Ching Lin | — | Cleveland Guardians | Cleveland Indians signed OF Chia-Ching Lin. |
| Jun 19, 2011 | Signed as free agent | Jimmy Swift | — | Texas Rangers | Texas Rangers signed free agent 3B Jimmy Swift to a minor league contract. |
| Jun 19, 2011 | Signed | Nick Martinez | — | Texas Rangers | Texas Rangers signed RHP Nick Martinez. |
| Jun 19, 2011 | Signed | Sam Robinson | — | Texas Rangers | Texas Rangers signed LHP Samuel Robinson. |
| Jun 19, 2011 | Signed | Andrew Faulkner | — | Texas Rangers | Texas Rangers signed LHP Andrew Faulkner. |
| Jun 19, 2011 | Signed as free agent | Daniel Carela | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent RHP Daniel Carela to a minor league contract. |
| Jun 19, 2011 | Signed | Maxx Catapano | — | Seattle Mariners | Seattle Mariners signed RHP Maxx Catapano. |
| Jun 18, 2011 | Signed | Dante Bichette Jr. | — | New York Yankees | New York Yankees signed 3B Dante Bichette, Jr.. |
| Jun 18, 2011 | Signed | Jason Krizan | — | Detroit Tigers | Detroit Tigers signed OF Jason Krizan. |
| Jun 18, 2011 | Signed as free agent | Jeff Salazar | — | Detroit Tigers | Detroit Tigers signed free agent Jeff Salazar. |
| Jun 18, 2011 | Signed as free agent | Chris Carter | — | Atlanta Braves | Atlanta Braves signed free agent OF Chris Carter to a minor league contract. |
| Jun 18, 2011 | Signed as free agent | Ruben Gotay | — | Atlanta Braves | Atlanta Braves signed free agent IF Ruben Gotay to a minor league contract. |
| Jun 18, 2011 | Signed | Cody Grice | — | New York Yankees | New York Yankees signed OF Cody Grice. |
| Jun 18, 2011 | Signed as free agent | Bradley Blanks | — | Milwaukee Brewers | Milwaukee Brewers signed free agent RHP Bradley Blanks to a minor league contract. |
| Jun 18, 2011 | Signed | Benjamin Grisz | — | Washington Nationals | Washington Nationals signed RHP Benjamin Grisz. |
| Jun 18, 2011 | Signed | Adrian Williams | — | Milwaukee Brewers | Milwaukee Brewers signed IF Adrian Williams. |
| Jun 18, 2011 | Signed | Michael Nemeth | — | Milwaukee Brewers | Milwaukee Brewers signed IF Michael Nemeth. |
| Jun 18, 2011 | Signed | Gant Elmore | — | Milwaukee Brewers | Milwaukee Brewers signed IF Gant Elmore. |
| Jun 18, 2011 | Signed | Doug Elliot | — | Milwaukee Brewers | Milwaukee Brewers signed C Doug Elliot. |
| Jun 18, 2011 | Signed | Parker Berberet | — | Milwaukee Brewers | Milwaukee Brewers signed C Parker Berberet. |
| Jun 18, 2011 | Signed | Brandon Williamson | — | Milwaukee Brewers | Milwaukee Brewers signed RHP Brandon Williamson. |
| Jun 18, 2011 | Signed | Mike Strong | — | Milwaukee Brewers | Milwaukee Brewers signed LHP Michael Strong. |
| Jun 18, 2011 | Signed | Chad Pierce | — | Milwaukee Brewers | Milwaukee Brewers signed RHP Chad Pierce. |
| Jun 18, 2011 | Signed | Andy Moye | — | Milwaukee Brewers | Milwaukee Brewers signed RHP Andy Moye. |
| Jun 18, 2011 | Signed | Jacob Barnes | — | Milwaukee Brewers | Milwaukee Brewers signed RHP Jacob Barnes. |
| Jun 18, 2011 | Signed | Sean Albury | — | Milwaukee Brewers | Milwaukee Brewers signed RHP Sean Albury. |
| Jun 18, 2011 | Signed | Scott McGough | — | Los Angeles Dodgers | Los Angeles Dodgers signed RHP Scott McGough. |
| Jun 18, 2011 | Signed | Brian Stamps | — | Atlanta Braves | Atlanta Braves signed CF Brian Stamps. |
| Jun 17, 2011 | Signed as free agent | Robert Kilcrease | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent LHP Robert Kilcrease to a minor league contract. |
| Jun 17, 2011 | Signed | Jonathan Schwind | — | Pittsburgh Pirates | Pittsburgh Pirates signed OF Jonathan Schwind. |
| Jun 17, 2011 | Signed | Mason Radeke | — | Cleveland Guardians | Cleveland Indians signed RHP Mason Radeke. |
| Jun 17, 2011 | Signed | Matt Gedman | — | Boston Red Sox | Boston Red Sox signed 2B Matthew Gedman. |
| Jun 17, 2011 | Signed | Brenden Shepard | — | Boston Red Sox | Boston Red Sox signed RHP Brenden Shepard. |
| Jun 17, 2011 | Signed | Corey Vogt | — | Boston Red Sox | Boston Red Sox signed RHP Corey Vogt. |
| Jun 17, 2011 | Signed | Andrew Jones | — | Boston Red Sox | Boston Red Sox signed RHP Andrew Jones. |
| Jun 17, 2011 | Signed | David Chester | — | Boston Red Sox | Boston Red Sox signed 1B David Chester. |
| Jun 17, 2011 | Signed | Carlos Coste | — | Boston Red Sox | Boston Red Sox signed C Carlos Coste. |
| Jun 17, 2011 | Signed | Jadd Schmeltzer | — | Boston Red Sox | Boston Red Sox signed RHP Jadd Schmeltzer. |
| Jun 17, 2011 | Signed | Jake Sisco | — | Cleveland Guardians | Cleveland Indians signed RHP Jake Sisco. |
| Jun 17, 2011 | Signed | Jonathan Ogden | — | Detroit Tigers | Detroit Tigers signed SS Jonathan Ogden. |
| Jun 17, 2011 | Signed | Garrett Baker | — | Los Angeles Angels | Los Angeles Angels signed LHP Garrett Baker. |
| Jun 17, 2011 | Signed | Juan Carlin | — | Los Angeles Angels | Los Angeles Angels signed LHP Juan Carlin. |
| Jun 17, 2011 | Signed | Ryan Crowley | — | Los Angeles Angels | Los Angeles Angels signed LHP Ryan Crowley. |
| Jun 17, 2011 | Signed | Logan Odom | — | Los Angeles Angels | Los Angeles Angels signed RHP Logan Odom. |
| Jun 17, 2011 | Signed | Shane Riedie | — | Los Angeles Angels | Los Angeles Angels signed RHP Shane Riedie. |
| Jun 17, 2011 | Signed | Daniel Vargas-Vila | — | Los Angeles Angels | Los Angeles Angels signed RHP Daniel Vargas-Vila. |
| Jun 17, 2011 | Signed | Abel Baker | — | Los Angeles Angels | Los Angeles Angels signed C Abel Baker. |
| Jun 17, 2011 | Signed | Francis Larson | — | Los Angeles Angels | Los Angeles Angels signed C Francis Larson. |
| Jun 17, 2011 | Signed | Ricky Pacione | — | Los Angeles Angels | Los Angeles Angels signed C Ricky Pacione . |
| Jun 17, 2011 | Signed | Brandon Brewer | — | Los Angeles Angels | Los Angeles Angels signed SS Brandon Brewer. |
| Jun 17, 2011 | Signed | Trevor Hairgrove | — | Los Angeles Angels | Los Angeles Angels signed SS Trevor Hairgrove. |
| Jun 17, 2011 | Signed | Frazier Hall | — | Los Angeles Angels | Los Angeles Angels signed 1B Frazier Hall. |
| Jun 17, 2011 | Signed | Jarrod Parks | — | Los Angeles Angels | Los Angeles Angels signed 3B Jarrod Parks. |
| Jun 17, 2011 | Signed | Brennan Gowens | — | Los Angeles Angels | Los Angeles Angels signed OF Brennan Gowens. |
| Jun 17, 2011 | Signed | Drew Martinez | — | Los Angeles Angels | Los Angeles Angels signed OF Drew Martinez. |
| Jun 17, 2011 | Signed | Andrew Ray | — | Los Angeles Angels | Los Angeles Angels signed OF Andrew Ray. |
| Jun 17, 2011 | Signed | James Allen | — | Cincinnati Reds | Cincinnati Reds signed RHP James Allen. |
| Jun 17, 2011 | Signed | Dan Jensen | — | Cincinnati Reds | Cincinnati Reds signed RHP Dan Jensen. |
| Jun 17, 2011 | Signed | Kyle McMyne | — | Cincinnati Reds | Cincinnati Reds signed RHP Kyle McMyne. |
| Jun 17, 2011 | Signed | Brooks Pinckard | — | Cincinnati Reds | Cincinnati Reds signed RHP Brooks Pinckard. |
| Jun 17, 2011 | Signed | Sean Buckley | — | Cincinnati Reds | Cincinnati Reds signed IF Sean Buckley. |
| Jun 17, 2011 | Signed | Nick O'Shea | — | Cincinnati Reds | Cincinnati Reds signed IF Nick O'Shea. |
| Jun 17, 2011 | Signed | Tyson Seng | — | New York Mets | New York Mets signed RHP Tyson Seng. |
| Jun 17, 2011 | Signed | Luke Irvine | — | Tampa Bay Rays | Tampa Bay Rays signed RHP Lucas Irvine. |
| Jun 17, 2011 | Signed | Garret Smith | — | Tampa Bay Rays | Tampa Bay Rays signed RHP Garret Smith. |
| Jun 17, 2011 | Signed | Jonathan Koscso | — | Tampa Bay Rays | Tampa Bay Rays signed 2B Jonathan Koscso. |
| Jun 17, 2011 | Signed | Taylor Motter | — | Tampa Bay Rays | Tampa Bay Rays signed SS Taylor Motter. |
| Jun 17, 2011 | Signed | Cameron Seitzer | — | Tampa Bay Rays | Tampa Bay Rays signed 1B Cameron Seitzer. |
| Jun 17, 2011 | Signed | Ryan Terry | — | Tampa Bay Rays | Tampa Bay Rays signed 3B Ryan Terry. |
| Jun 17, 2011 | Signed as free agent | Cory Cowsert | — | New York Yankees | New York Yankees signed free agent RHP Cory Cowsert to a minor league contract. |
| Jun 17, 2011 | Signed as free agent | Connor Whalen | — | Milwaukee Brewers | Milwaukee Brewers signed free agent LHP Connor Whalen to a minor league contract. |
| Jun 17, 2011 | Signed | Joseph Parsons | — | Pittsburgh Pirates | Pittsburgh Pirates signed RHP Joseph Parsons. |
| Jun 17, 2011 | Signed | Adam Davis | — | Baltimore Orioles | Baltimore Orioles signed C Adam Davis. |
| Jun 16, 2011 | Signed as free agent | Brian Gordon | — | New York Yankees | New York Yankees signed free agent Brian Gordon. |
| Jun 16, 2011 | Signed | Brian Flynn | — | Detroit Tigers | Detroit Tigers signed LHP Brian Flynn. |
| Jun 16, 2011 | Signed | Ismael Salgado | — | Detroit Tigers | Detroit Tigers signed OF Ismael Salgado. |
| Jun 16, 2011 | Signed | Scott Matyas | — | Detroit Tigers | Detroit Tigers signed RHP Scott Matyas. |
| Jun 16, 2011 | Signed | Guido Knudson | — | Detroit Tigers | Detroit Tigers signed RHP Guido Knudson. |
| Jun 16, 2011 | Signed | Montreal Robertson | — | Detroit Tigers | Detroit Tigers signed RHP Montreal Robertson. |
| Jun 16, 2011 | Signed | Brian Stroud | — | Detroit Tigers | Detroit Tigers signed RHP Brian Stroud. |
| Jun 16, 2011 | Signed | Brandon Eckerle | — | Detroit Tigers | Detroit Tigers signed OF Brandon Eckerle. |
| Jun 16, 2011 | Signed | Daniel Kickham | — | Detroit Tigers | Detroit Tigers signed RHP Daniel Kickham. |
| Jun 16, 2011 | Signed | Eric Heckaman | — | Detroit Tigers | Detroit Tigers signed RHP Eric Heckaman. |
| Jun 16, 2011 | Signed | Jake Sabol | — | Detroit Tigers | Detroit Tigers signed RHP Jake Sabol. |
| Jun 16, 2011 | Signed | Chretien Matz | — | Detroit Tigers | Detroit Tigers signed OF Chretien Matz. |
| Jun 16, 2011 | Released | Amauri Sanit | — | New York Yankees | New York Yankees released RHP Amauri Sanit. |
| Jun 16, 2011 | Signed | Shawn Payne | — | San Francisco Giants | San Francisco Giants signed OF Shawn Payne. |
| Jun 16, 2011 | Signed | Phil McCormick | — | San Francisco Giants | San Francisco Giants signed LHP Phil McCormick. |
| Jun 16, 2011 | Signed | Jack Snodgrass | — | San Francisco Giants | San Francisco Giants signed LHP Jack Snodgrass. |
| Jun 16, 2011 | Signed | Cody Hall | — | San Francisco Giants | San Francisco Giants signed RHP Cody Hall. |
| Jun 16, 2011 | Signed | Chris Lee | — | Houston Astros | Houston Astros signed LHP Chris Lee. |
| Jun 16, 2011 | Signed | Tommy La Stella | — | Atlanta Braves | Atlanta Braves signed 2B Tommy La Stella. |
| Jun 16, 2011 | Signed as free agent | Adam Bileckyj | — | St. Louis Cardinals | St. Louis Cardinals signed free agent LHP Adam Bileckyj to a minor league contract. |
| Jun 16, 2011 | Signed | Casey Rasmus | — | St. Louis Cardinals | St. Louis Cardinals signed C Casey Rasmus. |
| Jun 16, 2011 | Signed | Danny Stienstra | — | St. Louis Cardinals | St. Louis Cardinals signed 1B Danny Stienstra. |
| Jun 16, 2011 | Signed | Tyson Perez | — | Houston Astros | Houston Astros signed RHP Tyson Perez. |
| Jun 16, 2011 | Signed | Brad Propst | — | Houston Astros | Houston Astros signed RHP Brad Propst. |
| Jun 16, 2011 | Signed as free agent | Paris Shewey | — | Houston Astros | Houston Astros signed free agent LHP Paris Shewey to a minor league contract. |
| Jun 16, 2011 | Signed | Scott Zuloaga | — | Houston Astros | Houston Astros signed LHP Scott Zuloaga. |
| Jun 16, 2011 | Signed | Chase Davidson | — | Houston Astros | Houston Astros signed OF Chase Davidson. |
| Jun 16, 2011 | Signed | Ruben Sosa | — | Houston Astros | Houston Astros signed 2B Ruben Sosa. |
| Jun 16, 2011 | Signed | Alex Todd | — | Houston Astros | Houston Astros signed SS Alex Todd. |
| Jun 16, 2011 | Signed | Gardner Adams | — | Atlanta Braves | Atlanta Braves signed RHP Gardner Adams. |
| Jun 16, 2011 | Signed | J.R. Graham | — | Atlanta Braves | Atlanta Braves signed RHP J.R. Graham. |
| Jun 16, 2011 | Signed | Ryne Harper | — | Atlanta Braves | Atlanta Braves signed RHP Ryne Harper. |
| Jun 16, 2011 | Signed | Michael Hashem | — | Atlanta Braves | Atlanta Braves signed LHP Michael Hashem. |
| Jun 16, 2011 | Signed | Charlie Robertson | — | Atlanta Braves | Atlanta Braves signed RHP Charlie Robertson. |
| Jun 16, 2011 | Signed | Matt Talley | — | Atlanta Braves | Atlanta Braves signed LHP Matt Talley. |
| Jun 16, 2011 | Signed | Zach Arneson | — | New York Yankees | New York Yankees signed RHP Zach Arneson. |
| Jun 16, 2011 | Signed | Corey Maines | — | New York Yankees | New York Yankees signed RHP Corey Maines. |
| Jun 16, 2011 | Signed | Mark Montgomery | — | New York Yankees | New York Yankees signed RHP Mark Montgomery. |
| Jun 16, 2011 | Signed as free agent | Jose Ortegano | — | New York Yankees | New York Yankees signed free agent LHP Jose Ortegano to a minor league contract. |
| Jun 16, 2011 | Signed | Ben Paullus | — | New York Yankees | New York Yankees signed RHP Ben Paullus. |
| Jun 16, 2011 | Signed | Branden Pinder | — | New York Yankees | New York Yankees signed RHP Branden Pinder. |
| Jun 16, 2011 | Signed | Matt Tracy | — | New York Yankees | New York Yankees signed LHP Matt Tracy. |
| Jun 16, 2011 | Signed | Jake Lowery | — | Cleveland Guardians | Cleveland Indians signed C Jake Lowery. |
| Jun 16, 2011 | Signed | Phil Wetherell | — | New York Yankees | New York Yankees signed RHP Phil Wetherell. |
| Jun 16, 2011 | Signed | Bobby Rinard | — | New York Yankees | New York Yankees signed OF Robert Rinard. |
| Jun 16, 2011 | Signed | Brian Humphries | — | Colorado Rockies | Colorado Rockies signed OF Brian Humphries. |
| Jun 16, 2011 | Signed | Chad Comer | — | Atlanta Braves | Atlanta Braves signed C Chad Comer. |
| Jun 16, 2011 | Signed | Troy Snitker | — | Atlanta Braves | Atlanta Braves signed C Troy Snitker. |
| Jun 16, 2011 | Signed | Nick Popescu | — | Atlanta Braves | Atlanta Braves signed 3B Nick Popescu. |
| Jun 16, 2011 | Signed | Logan Robbins | — | Atlanta Braves | Atlanta Braves signed SS Logan Robbins. |
| Jun 16, 2011 | Signed | Kirk Walker | — | Atlanta Braves | Atlanta Braves signed SS Kirk Walker. |
| Jun 16, 2011 | Signed | Christopher Bullard | — | Atlanta Braves | Atlanta Braves signed OF Christopher Bullard. |
| Jun 16, 2011 | Signed | Will Skinner | — | Atlanta Braves | Atlanta Braves signed OF Will Skinner. |
| Jun 16, 2011 | Signed as free agent | Jon Bachanov | — | Chicago White Sox | Chicago White Sox signed free agent RHP Jon Bachanov to a minor league contract. |
| Jun 16, 2011 | Signed as free agent | Jonathan Casey | — | Chicago White Sox | Chicago White Sox signed free agent RHP Jonathan Casey to a minor league contract. |
| Jun 16, 2011 | Signed | Blake Drake | — | Chicago White Sox | Chicago White Sox signed RHP Blake Drake. |
| Jun 16, 2011 | Signed | Joe Dvorsky | — | Chicago White Sox | Chicago White Sox signed RHP Joe Dvorsky. |
| Jun 16, 2011 | Signed | Kyle McMillen | — | Chicago White Sox | Chicago White Sox signed RHP Kyle McMillen. |
| Jun 16, 2011 | Signed | Scott Snodgress | — | Chicago White Sox | Chicago White Sox signed LHP Scott Snodgress. |
| Jun 16, 2011 | Signed | Kevin Vance | — | Chicago White Sox | Chicago White Sox signed RHP Kevin Vance. |
| Jun 16, 2011 | Signed | Blair Walters | — | Chicago White Sox | Chicago White Sox signed LHP Blair Walters. |
| Jun 16, 2011 | Signed | Neal Pritchard | — | St. Louis Cardinals | St. Louis Cardinals signed SS Neal Pritchard. |
| Jun 16, 2011 | Signed | Martin Medina | — | Chicago White Sox | Chicago White Sox signed C Martin Medina. |
| Jun 16, 2011 | Signed | Brent Tanner | — | Chicago White Sox | Chicago White Sox signed C Brent Tanner. |
| Jun 16, 2011 | Signed | Joe De Pinto | — | Chicago White Sox | Chicago White Sox signed 2B Joe De Pinto. |
| Jun 16, 2011 | Signed as free agent | Andrew Douglas | — | Chicago White Sox | Chicago White Sox signed free agent 2B Andrew Douglas to a minor league contract. |
| Jun 16, 2011 | Signed | David Herbek | — | Chicago White Sox | Chicago White Sox signed SS David Herbek. |
| Jun 16, 2011 | Signed | Mark Haddow | — | Chicago White Sox | Chicago White Sox signed OF Mark Haddow. |
| Jun 16, 2011 | Signed | Caleb Ramsey | — | Washington Nationals | Washington Nationals signed OF Caleb Ramsey. |
| Jun 16, 2011 | Signed | Khayyan Norfork | — | Washington Nationals | Washington Nationals signed 2B Khayyan Norfork. |
| Jun 16, 2011 | Signed | Bryce Ortega | — | Washington Nationals | Washington Nationals signed 3B Bryce Ortega. |
| Jun 16, 2011 | Signed | Matt Skole | — | Washington Nationals | Washington Nationals signed 3B Matt Skole. |
| Jun 16, 2011 | Signed | Brian Dupra | — | Washington Nationals | Washington Nationals signed RHP Brian Dupra. |
| Jun 16, 2011 | Signed | Travis Henke | — | Washington Nationals | Washington Nationals signed RHP Travis Henke. |
| Jun 16, 2011 | Signed | Alex Kreis | — | Washington Nationals | Washington Nationals signed RHP Alex Kreis. |
| Jun 16, 2011 | Signed | Richie Mirowski | — | Washington Nationals | Washington Nationals signed RHP Richie Mirowski. |
| Jun 16, 2011 | Signed | Blake Monar | — | Washington Nationals | Washington Nationals signed LHP Blake Monar. |
| Jun 16, 2011 | Signed | Manny Rodriguez | — | Washington Nationals | Washington Nationals signed RHP Manny Rodriguez. |
| Jun 16, 2011 | Signed | Daniel Bream | — | Tampa Bay Rays | Tampa Bay Rays signed RHP Daniel Bream. |
| Jun 16, 2011 | Signed | Zach Butler | — | Tampa Bay Rays | Tampa Bay Rays signed RHP Zach Butler. |
| Jun 16, 2011 | Signed | Shay Crawford | — | Tampa Bay Rays | Tampa Bay Rays signed LHP Shay Crawford. |
| Jun 16, 2011 | Signed | Theron Geith | — | Tampa Bay Rays | Tampa Bay Rays signed LHP Theron Geith. |
| Jun 16, 2011 | Signed | David Kubiak | — | Tampa Bay Rays | Tampa Bay Rays signed RHP David Kubiak. |
| Jun 16, 2011 | Signed | Stayton Thomas | — | Tampa Bay Rays | Tampa Bay Rays signed RHP Stayton Thomas. |
| Jun 16, 2011 | Signed | Ryan Turner | — | Tampa Bay Rays | Tampa Bay Rays signed RHP Ryan Turner. |
| Jun 16, 2011 | Signed | Michael Bourdon | — | Tampa Bay Rays | Tampa Bay Rays signed C Michael Bourdon. |
| Jun 16, 2011 | Signed | Brandon Choate | — | Tampa Bay Rays | Tampa Bay Rays signed C Brandon Choate. |
| Jun 16, 2011 | Signed | Ian Tomkins | — | Tampa Bay Rays | Tampa Bay Rays signed C Ian Tomkins. |
| Jun 16, 2011 | Signed | Granden Goetzman | — | Tampa Bay Rays | Tampa Bay Rays signed OF Granden Goetzman. |
| Jun 16, 2011 | Signed | Matt Johnson | — | Tampa Bay Rays | Tampa Bay Rays signed OF Matt Johnson. |
| Jun 16, 2011 | Signed | Kevin Matthews | — | Texas Rangers | Texas Rangers signed LHP Kevin Matthews. |
| Jun 16, 2011 | Signed | Zach Cone | — | Texas Rangers | Texas Rangers signed OF Zach Cone. |
| Jun 16, 2011 | Signed as free agent | Darryl George | — | Tampa Bay Rays | Tampa Bay Rays signed free agent 3B Darryl George to a minor league contract. |
| Jun 16, 2011 | Signed | Wes Thigpen | — | Detroit Tigers | Detroit Tigers signed C Wes Thigpen. |
| Jun 16, 2011 | Signed | Patrick Smith | — | Detroit Tigers | Detroit Tigers signed OF Patrick Smith. |
| Jun 16, 2011 | Signed | Danry Vasquez | — | Detroit Tigers | Detroit Tigers signed OF Danry Vasquez. |
| Jun 16, 2011 | Signed | Tony Nix | — | Washington Nationals | Washington Nationals signed OF Tony Nix. |
| Jun 16, 2011 | Signed | Trey Karlen | — | Washington Nationals | Washington Nationals signed 2B Trey Karlen. |
| Jun 16, 2011 | Signed | Deion Williams | — | Washington Nationals | Washington Nationals signed SS Deion Williams. |
| Jun 16, 2011 | Signed | Wes Schill | — | Washington Nationals | Washington Nationals signed SS Wes Schill. |
| Jun 16, 2011 | Signed | Erick Fernandez | — | Washington Nationals | Washington Nationals signed C Erick Fernandez. |
| Jun 16, 2011 | Signed | Kenneth Ferrer | — | Washington Nationals | Washington Nationals signed RHP Kenneth Ferrer. |
| Jun 16, 2011 | Signed | Ben Hawkins | — | Washington Nationals | Washington Nationals signed LHP Ben Hawkins. |
| Jun 16, 2011 | Signed | Bobby Lucas | — | Washington Nationals | Washington Nationals signed LHP Bobby Lucas. |
| Jun 16, 2011 | Signed | Todd Simko | — | Washington Nationals | Washington Nationals signed LHP Todd Simko. |
| Jun 16, 2011 | Signed | Jason Smith | — | Washington Nationals | Washington Nationals signed RHP Jason Smith. |
| Jun 16, 2011 | Signed | Brandon Culbreth | — | Houston Astros | Houston Astros signed RHP Brandon Culbreth. |
| Jun 16, 2011 | Signed | Steven Dennison | — | Houston Astros | Houston Astros signed RHP Steven Dennison. |
| Jun 16, 2011 | Signed | Blake Ford | — | Houston Astros | Houston Astros signed RHP Blake Ford. |
| Jun 16, 2011 | Signed | Zachary Hardoin | — | Houston Astros | Houston Astros signed LHP Zachary Hardoin. |
| Jun 16, 2011 | Signed | Joe Witkowski | — | Houston Astros | Houston Astros signed C Joe Witkowski. |
| Jun 16, 2011 | Signed | Justin Shults | — | Houston Astros | Houston Astros signed 1B Justin Shults. |
| Jun 16, 2011 | Signed | Chris Epps | — | Houston Astros | Houston Astros signed OF Chris Epps. |
| Jun 16, 2011 | Signed | Jarrod McKinney | — | Houston Astros | Houston Astros signed OF Jarrod McKinney. |
| Jun 16, 2011 | Signed | Javaris Reynolds | — | Houston Astros | Houston Astros signed OF Javaris Reynolds. |
| Jun 16, 2011 | Signed as free agent | Jon Gulbransen | — | Chicago White Sox | Chicago White Sox signed free agent LHP Jon Gulbransen to a minor league contract. |
| Jun 16, 2011 | Signed as free agent | Stew Brase | — | Chicago White Sox | Chicago White Sox signed free agent RHP Stew Brase to a minor league contract. |
| Jun 16, 2011 | Signed as free agent | Keith Hessler | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent LHP Keith Hessler to a minor league contract. |
| Jun 16, 2011 | Signed | Blake Snell | — | Tampa Bay Rays | Tampa Bay Rays signed LHP Blake Snell. |
| Jun 16, 2011 | Signed | Bryam Garcia | — | Atlanta Braves | Atlanta Braves signed RHP Bryam Garcia. |
| Jun 16, 2011 | Signed | Nick Ahmed | — | Atlanta Braves | Atlanta Braves signed SS Nick Ahmed. |
| Jun 16, 2011 | Signed | Mitch Lambson | — | Houston Astros | Houston Astros signed LHP Mitchell Lambson. |
| Jun 16, 2011 | Signed | Kuo-Hua Lo | — | Minnesota Twins | Minnesota Twins signed RHP Kuo Hua Lo. |
| Jun 15, 2011 | Signed | Will Lamb | — | Texas Rangers | Texas Rangers signed LHP Will Lamb. |
| Jun 15, 2011 | Signed | Dan Gamache | — | Pittsburgh Pirates | Pittsburgh Pirates signed IF Dan Gamache. |
| Jun 15, 2011 | Signed | Taylor Lewis | — | Pittsburgh Pirates | Pittsburgh Pirates signed OF Taylor Lewis. |
| Jun 15, 2011 | Released | Scott Kazmir | — | Los Angeles Angels | Los Angeles Angels released LHP Scott Kazmir. |
| Jun 15, 2011 | Signed as free agent | Jerome Williams | — | Los Angeles Angels | Los Angeles Angels signed free agent RHP Jerome Williams to a minor league contract. |
| Jun 15, 2011 | Signed | Chris Haney | — | San Diego Padres | San Diego Padres signed RHP Chris Haney. |
| Jun 15, 2011 | Signed | Jeremy Gigliotti | — | San Diego Padres | San Diego Padres signed LHP Jeremy Gigliotti. |
| Jun 15, 2011 | Signed | Matt Andriese | — | San Diego Padres | San Diego Padres signed RHP Matt Andriese. |
| Jun 15, 2011 | Signed as free agent | Marc Bourgeois | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent OF Marc Bourgeois to a minor league contract. |
| Jun 15, 2011 | Signed | Matt Neil | — | Miami Marlins | Florida Marlins signed RHP Matt Neil. |
| Jun 15, 2011 | Signed | Charles Wier | — | Miami Marlins | Florida Marlins signed RHP Charles Wier. |
| Jun 15, 2011 | Signed | Jose Behar | — | Miami Marlins | Florida Marlins signed C Jose Behar. |
| Jun 15, 2011 | Signed | Ryan Goetz | — | Miami Marlins | Florida Marlins signed 3B Ryan Goetz. |
| Jun 15, 2011 | Signed | Ryan McIntyre | — | Miami Marlins | Florida Marlins signed OF Ryan McIntyre. |
| Jun 15, 2011 | Signed | Danny Muno | — | New York Mets | New York Mets signed 2B Daniel Muno. |
| Jun 15, 2011 | Signed | Charley Thurber | — | New York Mets | New York Mets signed OF Charley Thurber. |
| Jun 15, 2011 | Signed | Travis Taijeron | — | New York Mets | New York Mets signed OF Travis Taijeron. |
| Jun 15, 2011 | Signed | Jonathan Clark | — | New York Mets | New York Mets signed OF Jonathan Clark. |
| Jun 15, 2011 | Signed | Braden Kapteyn | — | Boston Red Sox | Boston Red Sox signed 1B Braden Kapteyn. |
| Jun 15, 2011 | Signed as free agent | Nick Natoli | — | Boston Red Sox | Boston Red Sox signed free agent SS Nick Natoli to a minor league contract. |
| Jun 15, 2011 | Signed as free agent | Drew Rucinski | — | Cleveland Guardians | Cleveland Indians signed free agent RHP Drew Rucinski to a minor league contract. |
| Jun 15, 2011 | Signed | Rick Anton | — | Los Angeles Dodgers | Los Angeles Dodgers signed LHP Rick Anton. |
| Jun 15, 2011 | Signed | Matt Shelton | — | Los Angeles Dodgers | Los Angeles Dodgers signed RHP Matt Shelton. |
| Jun 15, 2011 | Signed | Scott Woodward | — | Los Angeles Dodgers | Los Angeles Dodgers signed 3B Scott Woodward. |
| Jun 15, 2011 | Signed | Devin Shines | — | Los Angeles Dodgers | Los Angeles Dodgers signed OF Devin Shines. |
| Jun 15, 2011 | Signed | Cody Allen | — | Cleveland Guardians | Cleveland Indians signed RHP Cody Allen. |
| Jun 15, 2011 | Signed | Todd Hankins | — | Cleveland Guardians | Cleveland Indians signed 2B Todd Hankins. |
| Jun 15, 2011 | Signed | Zachary Dando | — | Houston Astros | Houston Astros signed RHP Zachary Dando. |
| Jun 15, 2011 | Signed as free agent | Francisco Aponte | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent 1B Francisco Aponte to a minor league contract. |
| Jun 15, 2011 | Signed as free agent | T.J. Rivera | — | New York Mets | New York Mets signed free agent SS T.J. Rivera to a minor league contract. |
| Jun 15, 2011 | Signed as free agent | Andres Avila | — | Athletics | Oakland Athletics signed free agent Andres Avila. |
| Jun 15, 2011 | Signed as free agent | Jimmie Pharr | — | Milwaukee Brewers | Milwaukee Brewers signed free agent C Jimmie Pharr to a minor league contract. |
| Jun 15, 2011 | Signed as free agent | Beck Wheeler | — | New York Mets | New York Mets signed free agent RHP Beck Wheeler to a minor league contract. |
| Jun 15, 2011 | Signed | Kevin Quackenbush | — | San Diego Padres | San Diego Padres signed RHP Kevin Quackenbush. |
| Jun 14, 2011 | Signed | Harold Riggins | — | Colorado Rockies | Colorado Rockies signed Harold Riggins. |
| Jun 14, 2011 | Signed | Tim Smalling | — | Colorado Rockies | Colorado Rockies signed IF Tim Smalling. |
| Jun 14, 2011 | Signed | William Rankin | — | Colorado Rockies | Colorado Rockies signed RHP William Rankin. |
| Jun 14, 2011 | Signed | Jordan Ribera | — | Colorado Rockies | Colorado Rockies signed IF Jordan Ribera. |
| Jun 14, 2011 | Signed | Logan Mahon | — | Colorado Rockies | Colorado Rockies signed LHP Logan Mahon. |
| Jun 14, 2011 | Signed | Brook Hart | — | Colorado Rockies | Colorado Rockies signed LHP Brook Hart. |
| Jun 14, 2011 | Signed | Michael Wolford | — | Colorado Rockies | Colorado Rockies signed RHP Michael Wolford. |
| Jun 14, 2011 | Signed | Matt Argyropoulos | — | Colorado Rockies | Colorado Rockies signed IF Matt Argyropoulos. |
| Jun 14, 2011 | Signed | Sam Mende | — | Colorado Rockies | Colorado Rockies signed IF Sam Mende. |
| Jun 14, 2011 | Signed | Jarod Berggren | — | Colorado Rockies | Colorado Rockies signed OF Jarod Berggren. |
| Jun 14, 2011 | Signed | Chris Dennis | — | Colorado Rockies | Colorado Rockies signed RHP Chris Dennis. |
| Jun 14, 2011 | Signed | Richard Pirkle | — | Colorado Rockies | Colorado Rockies signed C Richard Pirkle. |
| Jun 14, 2011 | Signed | Justin Bianco | — | Arizona Diamondbacks | Arizona Diamondbacks signed OF Justin Bianco. |
| Jun 14, 2011 | Signed | Cody Geyer | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP Cody Geyer. |
| Jun 14, 2011 | Signed | Michael Blake | — | Arizona Diamondbacks | Arizona Diamondbacks signed LHP Michael Blake. |
| Jun 14, 2011 | Signed | Carter Bell | — | Arizona Diamondbacks | Arizona Diamondbacks signed 3B Carter Bell. |
| Jun 14, 2011 | Signed | Tyler Bream | — | Arizona Diamondbacks | Arizona Diamondbacks signed 3B Tyler Bream. |
| Jun 14, 2011 | Signed | Steve Rodriguez | — | Arizona Diamondbacks | Arizona Diamondbacks signed C Steve Rodriguez. |
| Jun 14, 2011 | Signed | Zachary Jones | — | Arizona Diamondbacks | Arizona Diamondbacks signed C Zachary Jones. |
| Jun 14, 2011 | Signed | Bobby Crocker | — | Athletics | Oakland Athletics signed OF Bobby Crocker. |
| Jun 14, 2011 | Signed | Beau Taylor | — | Athletics | Oakland Athletics signed C Beau Taylor. |
| Jun 14, 2011 | Signed | Dayton Alexander | — | Athletics | Oakland Athletics signed OF Dayton Alexander. |
| Jun 14, 2011 | Signed | Blake Treinen | — | Athletics | Oakland Athletics signed Blake Treinen. |
| Jun 14, 2011 | Signed | Xavier Macklin | — | Athletics | Oakland Athletics signed OF Xavier Macklin. |
| Jun 14, 2011 | Signed | Jacob Tanis | — | Athletics | Oakland Athletics signed 3B Jacob Tanis. |
| Jun 14, 2011 | Signed | Nick Rickles | — | Athletics | Oakland Athletics signed C Nick Rickles. |
| Jun 14, 2011 | Signed | T.J. Walz | — | Athletics | Oakland Athletics signed RHP T.J. Walz. |
| Jun 14, 2011 | Signed | Tanner Peters | — | Athletics | Oakland Athletics signed RHP Tanner Peters. |
| Jun 14, 2011 | Signed | Sean Jamieson | — | Athletics | Oakland Athletics signed SS Sean Jamieson. |
| Jun 14, 2011 | Signed | Brent Powers | — | Athletics | Oakland Athletics signed LHP Brent Powers. |
| Jun 14, 2011 | Signed | Eric Potter | — | Athletics | Oakland Athletics signed LHP Eric Potter. |
| Jun 14, 2011 | Signed | Kurt Wunderlich | — | Athletics | Oakland Athletics signed RHP Kurt Wunderlich. |
| Jun 14, 2011 | Signed | Rhett Stafford | — | Athletics | Oakland Athletics signed OF Rhett Stafford. |
| Jun 14, 2011 | Signed | Cecil Tanner | — | Athletics | Oakland Athletics signed RHP Berry Tanner. |
| Jun 14, 2011 | Signed | Sam Roberts | — | Athletics | Oakland Athletics signed SS Sam Roberts. |
| Jun 14, 2011 | Signed | Thomas Girdwood | — | Athletics | Oakland Athletics signed RHP Thomas Girdwood. |
| Jun 14, 2011 | Signed | Nate Eppley | — | Athletics | Oakland Athletics signed RHP Nate Eppley . |
| Jun 14, 2011 | Signed | Nathan Kilcrease | — | Athletics | Oakland Athletics signed RHP Nathan Kilcrease. |
| Jun 14, 2011 | Signed | Drew Granier | — | Athletics | Oakland Athletics signed RHP Drew Granier. |
| Jun 14, 2011 | Signed as free agent | Matt Cusick | — | Los Angeles Angels | Los Angeles Angels signed free agent 2B Matt Cusick to a minor league contract. |
| Jun 14, 2011 | Signed | Kyle Hallock | — | Houston Astros | Houston Astros signed LHP Kyle Hallock. |
| Jun 14, 2011 | Signed | Nick Tropeano | — | Houston Astros | Houston Astros signed RHP Nicholas Tropeano. |
| Jun 14, 2011 | Signed | Miles Hamblin | — | Houston Astros | Houston Astros signed C Miles Hamblin. |
| Jun 14, 2011 | Signed | Matt Duffy | — | Houston Astros | Houston Astros signed 3B Matt Duffy. |
| Jun 14, 2011 | Signed | John Hinson | — | Houston Astros | Houston Astros signed IF John Hinson. |
| Jun 14, 2011 | Signed | Zach Johnson | — | Houston Astros | Houston Astros signed 3B Zach Johnson. |
| Jun 14, 2011 | Signed | Justin Gominsky | — | Houston Astros | Houston Astros signed OF Justin Gominsky. |
| Jun 14, 2011 | Signed | Brandon Meredith | — | Houston Astros | Houston Astros signed OF Brandon Meredith. |
| Jun 14, 2011 | Signed | Drew Muren | — | Houston Astros | Houston Astros signed OF Drew Muren. |
| Jun 14, 2011 | Signed | Corey Baker | — | St. Louis Cardinals | St. Louis Cardinals signed RHP Corey Baker. |
| Jun 14, 2011 | Signed | Jonathan Cornelius | — | St. Louis Cardinals | St. Louis Cardinals signed LHP Jonathan Cornelius. |
| Jun 14, 2011 | Signed | Andrew Madrigal | — | St. Louis Cardinals | St. Louis Cardinals signed RHP Andrew Madrigal. |
| Jun 14, 2011 | Signed | Seth Maness | — | St. Louis Cardinals | St. Louis Cardinals signed RHP Seth Maness. |
| Jun 14, 2011 | Signed | Todd McInnis | — | St. Louis Cardinals | St. Louis Cardinals signed RHP Todd McInnis. |
| Jun 14, 2011 | Signed | Travis Miller | — | St. Louis Cardinals | St. Louis Cardinals signed RHP Travis Miller. |
| Jun 14, 2011 | Signed | Danny Miranda | — | St. Louis Cardinals | St. Louis Cardinals signed LHP Danny Miranda. |
| Jun 14, 2011 | Signed | Jeremy Patton | — | St. Louis Cardinals | St. Louis Cardinals signed IF Jeremy Patton. |
| Jun 14, 2011 | Signed as free agent | Wes Hodges | — | San Francisco Giants | San Francisco Giants signed free agent 1B Wes Hodges to a minor league contract. |
| Jun 14, 2011 | Signed | Nick Martini | — | St. Louis Cardinals | St. Louis Cardinals signed OF Nick Martini. |
| Jun 14, 2011 | Signed as free agent | Hector Perez | — | Chicago Cubs | Chicago Cubs signed free agent RHP Hector Perez to a minor league contract. |
| Jun 14, 2011 | Signed as free agent | Victor Mesa | — | Houston Astros | Houston Astros signed free agent RHP Victor Mesa to a minor league contract. |
| Jun 14, 2011 | Signed as free agent | Ramón Vázquez | — | Toronto Blue Jays | Toronto Blue Jays signed free agent 2B Ramon Vazquez to a minor league contract. |
| Jun 14, 2011 | Signed as free agent | Dewayne Wise | — | Miami Marlins | Florida Marlins signed free agent Dewayne Wise. |
| Jun 14, 2011 | Signed | KC Serna | — | Cleveland Guardians | Cleveland Indians signed SS KC Serna. |
| Jun 14, 2011 | Signed | Nick Baligod | — | Toronto Blue Jays | Toronto Blue Jays signed OF Nick Baligod. |
| Jun 14, 2011 | Signed | Jon Berti | — | Toronto Blue Jays | Toronto Blue Jays signed 2B Jon Berti. |
| Jun 14, 2011 | Signed | Zack Breault | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Zack Breault. |
| Jun 14, 2011 | Signed | Eric Brown | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Eric Brown. |
| Jun 14, 2011 | Signed | Philip Brua | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Philip Brua. |
| Jun 14, 2011 | Signed | Taylor Cole | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Taylor Cole. |
| Jun 14, 2011 | Signed | Shane Davis | — | Toronto Blue Jays | Toronto Blue Jays signed LHP Shane Davis. |
| Jun 14, 2011 | Signed | Brandon Kaye | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Brandon Kaye. |
| Jun 14, 2011 | Signed | Blake McFarland | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Blake McFarland. |
| Jun 14, 2011 | Signed | Roan Salas | — | Toronto Blue Jays | Toronto Blue Jays signed 1B Roan Salas. |
| Jun 14, 2011 | Signed | Ben White | — | Toronto Blue Jays | Toronto Blue Jays signed RHP Ben White. |
| Jun 14, 2011 | Signed | Matt Tomshaw | — | Minnesota Twins | Minnesota Twins signed LHP Matt Tomshaw. |
| Jun 14, 2011 | Signed | Phillip Chapman | — | Minnesota Twins | Minnesota Twins signed C Phillip Chapman. |
| Jun 14, 2011 | Signed | Stephen Wickens | — | Minnesota Twins | Minnesota Twins signed SS Stephen Wickens. |
| Jun 14, 2011 | Signed as free agent | Tim Roberson | — | Boston Red Sox | Boston Red Sox signed free agent C Tim Roberson to a minor league contract. |
| Jun 14, 2011 | Signed | Kes Carter | — | Tampa Bay Rays | Tampa Bay Rays signed OF Kes Carter. |
| Jun 14, 2011 | Signed as free agent | Edgar Alberto Garcia | — | Kansas City Royals | Kansas City Royals signed free agent RHP Edgar Garcia to a minor league contract. |
| Jun 14, 2011 | Signed | Nick Vickerson | — | Texas Rangers | Texas Rangers signed 2B Nick Vickerson. |
| Jun 14, 2011 | Signed | Zach Maxfield | — | Detroit Tigers | Detroit Tigers signed 1B Zach Maxfield. |
| Jun 14, 2011 | Signed as free agent | Carlos Gimenez | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent IF Carlos Gimenez to a minor league contract. |
| Jun 13, 2011 | Trade | Michael McKenry | Boston Red Sox | Pittsburgh Pirates | Boston Red Sox traded C Michael McKenry to Pittsburgh Pirates. |
| Jun 13, 2011 | Signed | Kevin Moesquit | — | Los Angeles Angels | Los Angeles Angels signed SS Kevin Moesquit. |
| Jun 13, 2011 | Signed | Bryson Myles | — | Cleveland Guardians | Cleveland Indians signed OF Bryson Myles. |
| Jun 13, 2011 | Signed | Grant Sides | — | Cleveland Guardians | Cleveland Indians signed RHP Grant Sides. |
| Jun 13, 2011 | Signed | Cody Elliott | — | Cleveland Guardians | Cleveland Indians signed OF Cody Elliott. |
| Jun 13, 2011 | Signed | Kellen Moen | — | Kansas City Royals | Kansas City Royals signed RHP Kellen Moen. |
| Jun 13, 2011 | Signed | Dean Espy | — | Kansas City Royals | Kansas City Royals signed 1B Dean Espy. |
| Jun 13, 2011 | Signed | Spencer Patton | — | Kansas City Royals | Kansas City Royals signed RHP Spencer Patton. |
| Jun 13, 2011 | Signed | Adrian Bringas | — | Kansas City Royals | Kansas City Royals signed 3B Adrian Bringas. |
| Jun 13, 2011 | Signed | Aaron Brooks | — | Kansas City Royals | Kansas City Royals signed RHP Aaron Brooks. |
| Jun 13, 2011 | Signed | Matt Murray | — | Kansas City Royals | Kansas City Royals signed RHP Matthew Murray. |
| Jun 13, 2011 | Signed as free agent | Cody Fassold | — | Kansas City Royals | Kansas City Royals signed free agent Cody Fassold. |
| Jun 13, 2011 | Signed as free agent | Brian Gaylord | — | Kansas City Royals | Kansas City Royals signed free agent 1B Brian Gaylord to a minor league contract. |
| Jun 13, 2011 | Signed as free agent | Nathan Johnson | — | Kansas City Royals | Kansas City Royals signed free agent RHP Nathan Johnson to a minor league contract. |
| Jun 13, 2011 | Signed as free agent | Tyler Smith | — | Kansas City Royals | Kansas City Royals signed free agent C Tyler Smith to a minor league contract. |
| Jun 13, 2011 | Signed as free agent | Andrew Stueve | — | Kansas City Royals | Kansas City Royals signed free agent RHP Andrew Stueve to a minor league contract. |
| Jun 13, 2011 | Signed as free agent | Nick DelGuidice | — | Kansas City Royals | Kansas City Royals signed free agent SS Nick DelGuidice to a minor league contract. |
| Jun 13, 2011 | Signed as free agent | Tony Butler | — | Seattle Mariners | Seattle Mariners signed free agent LHP Tony Butler to a minor league contract. |
| Jun 13, 2011 | Signed | Joe DiRocco | — | Seattle Mariners | Seattle Mariners signed RHP Joe DiRocco. |
| Jun 13, 2011 | Signed | Cam Hobson | — | Seattle Mariners | Seattle Mariners signed LHP Cam Hobson. |
| Jun 13, 2011 | Signed | Jordan Shipers | — | Seattle Mariners | Seattle Mariners signed LHP Jordan Shipers. |
| Jun 13, 2011 | Signed | Cody Weiss | — | Seattle Mariners | Seattle Mariners signed RHP Cody Weiss. |
| Jun 13, 2011 | Signed as free agent | Jason Buursma | — | Seattle Mariners | Seattle Mariners signed free agent RHP Jason Buursma to a minor league contract. |
| Jun 13, 2011 | Signed | Adam Bryant | — | Minnesota Twins | Minnesota Twins signed SS Adam Bryant. |
| Jun 13, 2011 | Signed as free agent | C.J. Retherford | — | Detroit Tigers | Detroit Tigers signed free agent 3B C.J. Retherford to a minor league contract. |
| Jun 13, 2011 | Signed as free agent | Varonex Cuevas | — | Chicago Cubs | Chicago Cubs signed free agent SS Varonex Cuevas to a minor league contract. |
| Jun 13, 2011 | Signed as free agent | Alexander Frias | — | Chicago Cubs | Chicago Cubs signed free agent RHP Alexander Frias to a minor league contract. |
| Jun 13, 2011 | Signed as free agent | Luis Guillen | — | Chicago Cubs | Chicago Cubs signed free agent RHP Luis Guillen to a minor league contract. |
| Jun 13, 2011 | Signed as free agent | Jerrud Sabourin | — | Cleveland Guardians | Cleveland Indians signed free agent 1B Jerrud Sabourin to a minor league contract. |
| Jun 13, 2011 | Signed | Rob Nixon | — | Cleveland Guardians | Cleveland Indians signed RHP Rob Nixon. |
| Jun 13, 2011 | Signed as free agent | Alvin Maracaro | — | New York Mets | New York Mets signed free agent SS Alvin Maracaro to a minor league contract. |
| Jun 13, 2011 | Signed as free agent | Jairo Labourt | — | Toronto Blue Jays | Toronto Blue Jays signed free agent Jairo Labourt. |
| Jun 13, 2011 | Signed as free agent | Miguel De Leon | — | Miami Marlins | Florida Marlins signed free agent SS Miguel De Leon to a minor league contract. |
| Jun 13, 2011 | Signed | Kevin Brahney | — | Boston Red Sox | Boston Red Sox signed LHP Kevin Brahney. |
| Jun 13, 2011 | Signed | Mike McCarthy | — | Boston Red Sox | Boston Red Sox signed RHP Mike McCarthy. |
| Jun 13, 2011 | Signed | Miguel Pena | — | Boston Red Sox | Boston Red Sox signed LHP Miguel Pena. |
| Jun 13, 2011 | Signed | Travis Shaw | — | Boston Red Sox | Boston Red Sox signed 3B Travis Shaw. |
| Jun 13, 2011 | Signed | Drew Turocy | — | Boston Red Sox | Boston Red Sox signed OF Drew Turocy. |
| Jun 13, 2011 | Signed | Mike Dowd | — | Seattle Mariners | Seattle Mariners signed C Michael Dowd. |
| Jun 13, 2011 | Signed | Nathan Melendres | — | Seattle Mariners | Seattle Mariners signed OF Nathan Melendres. |
| Jun 13, 2011 | Signed | Max Krakowiak | — | Seattle Mariners | Seattle Mariners signed RHP Max Krakowiak. |
| Jun 13, 2011 | Signed | Daniel Paolini | — | Seattle Mariners | Seattle Mariners signed 2B Daniel Paolini. |
| Jun 13, 2011 | Signed | Jamal Austin | — | Seattle Mariners | Seattle Mariners signed OF Jamal Austin. |
| Jun 13, 2011 | Signed | Dillon Hazlett | — | Seattle Mariners | Seattle Mariners signed 2B Dillon Hazlett. |
| Jun 13, 2011 | Signed | Kenneth Straus | — | Seattle Mariners | Seattle Mariners signed OF Kenneth Straus. |
| Jun 13, 2011 | Signed | David Colvin | — | Seattle Mariners | Seattle Mariners signed RHP David Colvin. |
| Jun 13, 2011 | Signed | Brett Shankin | — | Seattle Mariners | Seattle Mariners signed RHP Brett Shankin. |
| Jun 13, 2011 | Signed | Kyle Hunter | — | Seattle Mariners | Seattle Mariners signed LHP Kyle Hunter. |
| Jun 13, 2011 | Signed | Bobby Shore | — | Seattle Mariners | Seattle Mariners signed RHP Bobby Shore. |
| Jun 13, 2011 | Signed | David Villasuso | — | Seattle Mariners | Seattle Mariners signed C David Villasuso. |
| Jun 13, 2011 | Signed | Alex Sunderland | — | Seattle Mariners | Seattle Mariners signed RHP Alex Sunderland. |
| Jun 13, 2011 | Signed | Chris Andreas | — | Seattle Mariners | Seattle Mariners signed 1B Chris Andreas. |
| Jun 13, 2011 | Signed | Trevor Miller | — | Seattle Mariners | Seattle Mariners signed RHP Trevor Miller. |
| Jun 13, 2011 | Signed | Marcos Reyna | — | Seattle Mariners | Seattle Mariners signed RHP Marcos Reyna. |
| Jun 13, 2011 | Signed | Joshua Corrales | — | Seattle Mariners | Seattle Mariners signed RHP Joshua Corrales. |
| Jun 13, 2011 | Signed | Charles Jimenez | — | Seattle Mariners | Seattle Mariners signed OF Charles Jimenez. |
| Jun 13, 2011 | Signed | Brad Zapenas | — | Chicago Cubs | Chicago Cubs signed SS Brad Zapenas. |
| Jun 13, 2011 | Signed | Paul Hoilman | — | Chicago Cubs | Chicago Cubs signed 1B Paul Hoilman. |
| Jun 13, 2011 | Signed | Ben Klafczynski | — | Chicago Cubs | Chicago Cubs signed OF Ben Klafczynski. |
| Jun 13, 2011 | Signed | Matt Crouse | — | Detroit Tigers | Detroit Tigers signed LHP Matt Crouse. |
| Jun 13, 2011 | Signed | Dean Green | — | Detroit Tigers | Detroit Tigers signed 1B Dean Green. |
| Jun 13, 2011 | Signed | Jason King | — | Detroit Tigers | Detroit Tigers signed 3B Jason King. |
| Jun 13, 2011 | Signed | Tyler Barrett | — | Detroit Tigers | Detroit Tigers signed LHP Tyler Barrett. |
| Jun 13, 2011 | Signed | Cody Asche | — | Philadelphia Phillies | Philadelphia Phillies signed 3B Cody Asche. |
| Jun 13, 2011 | Signed | Garrett Jewell | — | Minnesota Twins | Minnesota Twins signed RHP Garrett Jewell. |
| Jun 13, 2011 | Signed | Cole Johnson | — | Minnesota Twins | Minnesota Twins signed RHP Cole Johnson. |
| Jun 13, 2011 | Signed | Zach Jadofsky | — | Atlanta Braves | Atlanta Braves signed RHP Zach Jadofsky. |
| Jun 13, 2011 | Signed | Yacksel Ríos | — | Philadelphia Phillies | Philadelphia Phillies signed RHP Yacksel Rios. |
| Jun 13, 2011 | Signed | Wes Wilson | — | New York Yankees | New York Yankees signed C Wes Wilson. |
| Jun 13, 2011 | Signed | Michael Mergenthaler | — | San Francisco Giants | San Francisco Giants signed OF Michael Mergenthaler. |
| Jun 12, 2011 | Signed | Matt Benedict | — | Pittsburgh Pirates | Pittsburgh Pirates signed RHP Matt Benedict. |
| Jun 12, 2011 | Signed | Derek Trent | — | Pittsburgh Pirates | Pittsburgh Pirates signed C Derek Trent. |
| Jun 12, 2011 | Signed | Brian Sharp | — | Pittsburgh Pirates | Pittsburgh Pirates signed SS Brian Sharp. |
| Jun 12, 2011 | Signed | Kirk Singer | — | Pittsburgh Pirates | Pittsburgh Pirates signed SS Kirk Singer. |
| Jun 12, 2011 | Signed as free agent | Édgar González | — | Colorado Rockies | Colorado Rockies signed free agent RHP Edgar Gonzalez to a minor league contract. |
| Jun 12, 2011 | Signed | Sean Johnson | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP Sean Johnson. |
| Jun 12, 2011 | Signed | Fernando Perez | — | Detroit Tigers | Detroit Tigers signed RHP Fernando Perez. |
| Jun 12, 2011 | Signed | Harold Rosario | — | Detroit Tigers | Detroit Tigers signed RHP Harold Rosario. |
| Jun 12, 2011 | Signed | Collin Cargill | — | Miami Marlins | Florida Marlins signed RHP Collin Cargill. |
| Jun 12, 2011 | Signed | Sean Donatello | — | Miami Marlins | Florida Marlins signed RHP Sean Donatello. |
| Jun 12, 2011 | Signed | Brad Mincey | — | Miami Marlins | Florida Marlins signed RHP Brad Mincey. |
| Jun 12, 2011 | Signed | Johnny Omahen | — | Miami Marlins | Florida Marlins signed RHP John Omahen. |
| Jun 12, 2011 | Signed | Frankie Reed | — | Miami Marlins | Florida Marlins signed LHP Frankie Reed. |
| Jun 12, 2011 | Signed | Tony Caldwell | — | Miami Marlins | Florida Marlins signed C Tony Caldwell. |
| Jun 12, 2011 | Signed | Sharif Othman | — | Miami Marlins | Florida Marlins signed C Sharif Othman. |
| Jun 12, 2011 | Signed | Jhiomar Veras | — | Miami Marlins | Florida Marlins signed OF Jhiomar Veras. |
| Jun 12, 2011 | Signed | John Schultz | — | Miami Marlins | Florida Marlins signed OF John Schultz. |
| Jun 12, 2011 | Signed as free agent | Greg Smith | — | New York Yankees | New York Yankees signed free agent LHP Greg Smith to a minor league contract. |
| Jun 12, 2011 | Signed as free agent | Cory Wade | — | New York Yankees | New York Yankees signed free agent RHP Cory Wade to a minor league contract. |
| Jun 12, 2011 | Signed | D'Andre Toney | — | Kansas City Royals | Kansas City Royals signed OF D'Andre Toney. |
| Jun 12, 2011 | Signed | Nic Cuckovich | — | Kansas City Royals | Kansas City Royals signed SS Nick Cuckovich. |
| Jun 12, 2011 | Signed | Andy Ferguson | — | Kansas City Royals | Kansas City Royals signed RHP Andy Ferguson. |
| Jun 12, 2011 | Signed | Terrance Gore | — | Kansas City Royals | Kansas City Royals signed OF Terrance Gore. |
| Jun 12, 2011 | Signed | Lance Harper | — | Kansas City Royals | Kansas City Royals signed C Lance Harper. |
| Jun 12, 2011 | Signed | Mark Threlkeld | — | Kansas City Royals | Kansas City Royals signed 3B Mark Threlkeld. |
| Jun 12, 2011 | Signed | Ali Williams | — | Kansas City Royals | Kansas City Royals signed RHP Ali Williams. |
| Jun 12, 2011 | Signed | Gabriel Gray | — | Kansas City Royals | Kansas City Royals signed OF Gabriel Gray. |
| Jun 12, 2011 | Signed | Christian Witt | — | Kansas City Royals | Kansas City Royals signed RHP Christian Witt. |
| Jun 12, 2011 | Signed | Andrew Durden | — | Kansas City Royals | Kansas City Royals signed OF Andrew Durden. |
| Jun 12, 2011 | Signed | Travis Lane | — | Kansas City Royals | Kansas City Royals signed C Travis Lane. |
| Jun 12, 2011 | Signed | Tyler Chism | — | Kansas City Royals | Kansas City Royals signed OF Tyler Chism. |
| Jun 12, 2011 | Signed | Julio Morales | — | Kansas City Royals | Kansas City Royals signed OF Julio Morales. |
| Jun 12, 2011 | Signed | Julian Nunez | — | New York Yankees | New York Yankees signed RHP Julian Nunez. |
| Jun 12, 2011 | Signed | Ryan Duke | — | Philadelphia Phillies | Philadelphia Phillies signed RHP Ryan Duke. |
| Jun 12, 2011 | Signed | Cody Fick | — | Philadelphia Phillies | Philadelphia Phillies signed RHP Cody Fick. |
| Jun 12, 2011 | Signed | Greg Herbst | — | Philadelphia Phillies | Philadelphia Phillies signed RHP Gregory Herbst. |
| Jun 12, 2011 | Signed | Austin Wright | — | Philadelphia Phillies | Philadelphia Phillies signed LHP Austin Wright. |
| Jun 12, 2011 | Signed | Taylor Black | — | Philadelphia Phillies | Philadelphia Phillies signed SS Taylor Black. |
| Jun 12, 2011 | Signed | Tim Shibuya | — | Minnesota Twins | Minnesota Twins signed RHP Tim Shibuya. |
| Jun 12, 2011 | Signed | Charlie Cononie | — | Tampa Bay Rays | Tampa Bay Rays signed RHP Charlie Cononie. |
| Jun 12, 2011 | Signed | Gary Apelian | — | St. Louis Cardinals | St. Louis Cardinals signed OF Gary Apelian. |
| Jun 12, 2011 | Signed | David Bergin | — | St. Louis Cardinals | St. Louis Cardinals signed IF David Bergin. |
| Jun 12, 2011 | Signed | Patrick Deese | — | St. Louis Cardinals | St. Louis Cardinals signed RHP Patrick Deese. |
| Jun 12, 2011 | Signed | Heath Wyatt | — | St. Louis Cardinals | St. Louis Cardinals signed RHP Heath Wyatt. |
| Jun 12, 2011 | Signed as free agent | Neiko Johnson | — | Houston Astros | Houston Astros signed free agent 2B Neiko Johnson to a minor league contract. |
| Jun 12, 2011 | Signed as free agent | Tyler Carpenter | — | New York Mets | New York Mets signed free agent C Tyler Carpenter to a minor league contract. |
| Jun 12, 2011 | Signed as free agent | Stephen Peterson | — | Milwaukee Brewers | Milwaukee Brewers signed free agent LHP Stephen Peterson to a minor league contract. |
| Jun 11, 2011 | Signed | Joe Panik | — | San Francisco Giants | San Francisco Giants signed SS Joe Panik. |
| Jun 11, 2011 | Signed | Jace Peterson | — | San Diego Padres | San Diego Padres signed SS Jace Peterson. |
| Jun 11, 2011 | Signed | Kyle Gaedele | — | San Diego Padres | San Diego Padres signed OF Kyle Gaedele. |
| Jun 11, 2011 | Signed | Justin Hancock | — | San Diego Padres | San Diego Padres signed RHP Justin Hancock. |
| Jun 11, 2011 | Signed | Colin Rea | — | San Diego Padres | San Diego Padres signed RHP Colin Rea. |
| Jun 11, 2011 | Signed | Lee Orr | — | San Diego Padres | San Diego Padres signed OF Lee Orr. |
| Jun 11, 2011 | Signed | Greg Gonzalez | — | San Diego Padres | San Diego Padres signed RHP Greg Gonzalez. |
| Jun 11, 2011 | Signed | Jeremy Rodriguez | — | San Diego Padres | San Diego Padres signed C Jeremy Rodriguez. |
| Jun 11, 2011 | Signed | Matt Stites | — | San Diego Padres | San Diego Padres signed RHP Matt Stites. |
| Jun 11, 2011 | Signed | Mike Gallic | — | San Diego Padres | San Diego Padres signed OF Mike Gallic. |
| Jun 11, 2011 | Signed | Zach Kometani | — | San Diego Padres | San Diego Padres signed 1B Zach Kometani. |
| Jun 11, 2011 | Signed | Matt Colantonio | — | San Diego Padres | San Diego Padres signed C Matt Colantonio. |
| Jun 11, 2011 | Signed | Robert Eisenbach | — | San Diego Padres | San Diego Padres signed LHP Robert Eisenbach. |
| Jun 11, 2011 | Signed | Paul Karmas | — | San Diego Padres | San Diego Padres signed 1B Paul Karmas. |
| Jun 11, 2011 | Signed | Justin Miller | — | San Diego Padres | San Diego Padres signed OF Justin Miller. |
| Jun 11, 2011 | Signed | Clint Moore | — | San Diego Padres | San Diego Padres signed SS Clint Moore. |
| Jun 11, 2011 | Signed | Kyle Brule | — | San Diego Padres | San Diego Padres signed RHP Kyle Brule. |
| Jun 11, 2011 | Signed | James Jones | — | San Diego Padres | San Diego Padres signed RHP James Jones. |
| Jun 11, 2011 | Signed | Travis Whitmore | — | San Diego Padres | San Diego Padres signed 2B Travis Whitmore. |
| Jun 11, 2011 | Signed | Tyler Grimes | — | Minnesota Twins | Minnesota Twins signed SS Tyler Grimes. |
| Jun 11, 2011 | Signed | Alex Santana | — | Los Angeles Dodgers | Los Angeles Dodgers signed 3B Alex Santana. |
| Jun 11, 2011 | Signed | Jeff Schaus | — | Los Angeles Dodgers | Los Angeles Dodgers signed OF Jeff Schaus. |
| Jun 11, 2011 | Signed | Mike Thomas | — | Los Angeles Dodgers | Los Angeles Dodgers signed LHP Mike Thomas. |
| Jun 11, 2011 | Signed | Jesus Valdez | — | Los Angeles Dodgers | Los Angeles Dodgers signed RHP Jesus Valdez. |
| Jun 11, 2011 | Signed as free agent | Lance Cormier | — | Tampa Bay Rays | Tampa Bay Rays signed free agent RHP Lance Cormier to a minor league contract. |
| Jun 11, 2011 | Signed | Nick Avila | — | Detroit Tigers | Detroit Tigers signed RHP Nick Avila. |
| Jun 11, 2011 | Signed | Ryan Woolley | — | Detroit Tigers | Detroit Tigers signed RHP Ryan Woolley. |
| Jun 11, 2011 | Signed | Jeff Holm | — | Detroit Tigers | Detroit Tigers signed 1B Jeff Holm. |
| Jun 11, 2011 | Signed | Chad Wright | — | Detroit Tigers | Detroit Tigers signed OF Chad Wright. |
| Jun 11, 2011 | Signed | Harold Martinez | — | Philadelphia Phillies | Philadelphia Phillies signed 3B Harold Martinez. |
| Jun 11, 2011 | Signed | Brock Stassi | — | Philadelphia Phillies | Philadelphia Phillies signed OF Brock Stassi. |
| Jun 11, 2011 | Signed | Jonas Dufek | — | Houston Astros | Houston Astros signed RHP Jonas Dufek. |
| Jun 11, 2011 | Signed as free agent | Marcus Limon | — | Minnesota Twins | Minnesota Twins signed free agent RHP Marcus Limon to a minor league contract. |
| Jun 11, 2011 | Signed | Drew Leachman | — | Minnesota Twins | Minnesota Twins signed OF Drew Leachman. |
| Jun 11, 2011 | Signed | Jonathan Keener | — | St. Louis Cardinals | St. Louis Cardinals signed C Jonathan Keener. |
| Jun 11, 2011 | Signed | Matt Williams | — | St. Louis Cardinals | St. Louis Cardinals signed SS Matt Williams. |
| Jun 11, 2011 | Signed | Kyle Hald | — | St. Louis Cardinals | St. Louis Cardinals signed LHP Kyle Hald. |
| Jun 11, 2011 | Signed | Tyler Mills | — | St. Louis Cardinals | St. Louis Cardinals signed RHP Tyler Mills. |
| Jun 11, 2011 | Signed | Ryan Sherriff | — | St. Louis Cardinals | St. Louis Cardinals signed LHP Ryan Sherriff. |
| Jun 11, 2011 | Signed | Chase Larsson | — | Atlanta Braves | Atlanta Braves signed OF Chase Larsson. |
| Jun 11, 2011 | Signed | Sam Munson | — | Atlanta Braves | Atlanta Braves signed OF Sam Munson. |
| Jun 11, 2011 | Signed | Casey Hauptman | — | New York Mets | New York Mets signed RHP Casey Hauptman. |
| Jun 10, 2011 | Signed | Kyle Hendricks | — | Texas Rangers | Texas Rangers signed RHP Kyle Hendricks. |
| Jun 10, 2011 | Signed | Rashad Harlin | — | Texas Rangers | Texas Rangers signed OF Rashad Harlin. |
| Jun 10, 2011 | Signed | Joe Maloney | — | Texas Rangers | Texas Rangers signed C Joe Maloney. |
| Jun 10, 2011 | Signed | Greg Williams | — | Texas Rangers | Texas Rangers signed LHP Gregory Williams. |
| Jun 10, 2011 | Signed | Chris Grayson | — | Texas Rangers | Texas Rangers signed OF Chris Grayson. |
| Jun 10, 2011 | Signed | Kenneth Wiser | — | Texas Rangers | Texas Rangers signed RHP Kenneth Wiser. |
| Jun 10, 2011 | Signed | Jeremy Williams | — | Texas Rangers | Texas Rangers signed OF Jeremy Williams. |
| Jun 10, 2011 | Signed | Taylor Dennis | — | Texas Rangers | Texas Rangers signed RHP Taylor Dennis. |
| Jun 10, 2011 | Signed | Matt Leeds | — | Texas Rangers | Texas Rangers signed 1B Matt Leeds. |
| Jun 10, 2011 | Signed | Trever Adams | — | Texas Rangers | Texas Rangers signed 1B Trever Adams. |
| Jun 10, 2011 | Signed | Phil Klein | — | Texas Rangers | Texas Rangers signed RHP Phil Klein. |
| Jun 10, 2011 | Signed | Ryan Rua | — | Texas Rangers | Texas Rangers signed SS Ryan Rua. |
| Jun 10, 2011 | Signed | Saquan Johnson | — | Texas Rangers | Texas Rangers signed OF Saquan Johnson. |
| Jun 10, 2011 | Signed | Chance Sossamon | — | Texas Rangers | Texas Rangers signed RHP Chance Sossamon. |
| Jun 10, 2011 | Signed | Cory Spangenberg | — | San Diego Padres | San Diego Padres signed 2B Cory Spangenberg. |
| Jun 10, 2011 | Signed | Adrian Houser | — | Houston Astros | Houston Astros signed Adrian Houser. |
| Jun 10, 2011 | Signed | Zach Maggard | — | Detroit Tigers | Detroit Tigers signed C Zach Maggard. |
| Jun 10, 2011 | Signed | Colin Kaline | — | Detroit Tigers | Detroit Tigers signed 2B Colin Kaline. |
| Jun 10, 2011 | Signed as free agent | Nick Cicio | — | Minnesota Twins | Minnesota Twins signed free agent LHP Nick Cicio to a minor league contract. |
| Jun 10, 2011 | Signed | Bobby O'Neill | — | Minnesota Twins | Minnesota Twins signed RHP Bobby O'Neill. |
| Jun 10, 2011 | Signed as free agent | Kyle Wahl | — | Minnesota Twins | Minnesota Twins signed free agent RHP Kyle Wahl to a minor league contract. |
| Jun 10, 2011 | Signed | Andy Bass | — | Tampa Bay Rays | Tampa Bay Rays signed RHP Andy Bass. |
| Jun 10, 2011 | Signed | Brooks Belter | — | Tampa Bay Rays | Tampa Bay Rays signed RHP Brooks Belter. |
| Jun 10, 2011 | Signed | Raymond Church | — | Tampa Bay Rays | Tampa Bay Rays signed 2B Raymond Church. |
| Jun 10, 2011 | Signed | Nicholas Gillung | — | St. Louis Cardinals | St. Louis Cardinals signed LHP Nicholas Gillung. |
| Jun 10, 2011 | Signed as free agent | Brandon Macias | — | Milwaukee Brewers | Milwaukee Brewers signed free agent SS Brandon Macias to a minor league contract. |
| Jun 10, 2011 | Signed | Matt Chaffee | — | Atlanta Braves | Atlanta Braves signed LHP Matt Chaffee. |
| Jun 10, 2011 | Signed | Cody Martin | — | Atlanta Braves | Atlanta Braves signed RHP Cody Martin. |
| Jun 10, 2011 | Signed | Kyle Kubitza | — | Atlanta Braves | Atlanta Braves signed 3B Kyle Kubitza. |
| Jun 10, 2011 | Signed as free agent | Jin-De Jhang | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent C Jin-De Jhang to a minor league contract. |
| Jun 10, 2011 | Signed as free agent | Victor Alcántara | — | Los Angeles Angels | Los Angeles Angels signed free agent RHP Victor Alcantara to a minor league contract. |
| Jun 9, 2011 | Signed | Evan Marshall | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP Evan Marshall. |
| Jun 9, 2011 | Signed | John Leonard | — | Arizona Diamondbacks | Arizona Diamondbacks signed IF John Leonard. |
| Jun 9, 2011 | Signed | Jesse Darrah | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP Jesse Darrah. |
| Jun 9, 2011 | Signed | Josh Parr | — | Arizona Diamondbacks | Arizona Diamondbacks signed IF Josh Parr. |
| Jun 9, 2011 | Signed | John Pedrotty | — | Arizona Diamondbacks | Arizona Diamondbacks signed LHP John Pedrotty. |
| Jun 9, 2011 | Signed | Taylor Siemens | — | Arizona Diamondbacks | Arizona Diamondbacks signed LHP Taylor Siemens. |
| Jun 9, 2011 | Signed | Daniel Pulfer | — | Arizona Diamondbacks | Arizona Diamondbacks signed IF Daniel Pulfer. |
| Jun 9, 2011 | Signed | Jon Griffin | — | Arizona Diamondbacks | Arizona Diamondbacks signed 1B Jon Griffin. |
| Jun 9, 2011 | Signed | Garrett Weber | — | Arizona Diamondbacks | Arizona Diamondbacks signed SS Garrett Weber. |
| Jun 9, 2011 | Signed | Ryan Court | — | Arizona Diamondbacks | Arizona Diamondbacks signed IF Ryan Court. |
| Jun 9, 2011 | Signed | Austin Platt | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP Austin Platt. |
| Jun 9, 2011 | Signed | Matt Sample | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP Matt Sample. |
| Jun 9, 2011 | Signed | Dexter Price | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP Dexter Price. |
| Jun 9, 2011 | Signed | Matt Jensen | — | Arizona Diamondbacks | Arizona Diamondbacks signed IF Matthew Jensen. |
| Jun 9, 2011 | Signed | Ross Gerdeman | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP Ross Gerdeman. |
| Jun 9, 2011 | Signed | Bryan Henry | — | Arizona Diamondbacks | Arizona Diamondbacks signed C Bryan Henry. |
| Jun 9, 2011 | Signed | Elroy Urbina | — | Arizona Diamondbacks | Arizona Diamondbacks signed LHP Elroy Urbina. |
| Jun 9, 2011 | Signed | Kerry Jenkins | — | Arizona Diamondbacks | Arizona Diamondbacks signed OF Kerry Jenkins. |
| Jun 9, 2011 | Signed | Chris Ellison | — | Arizona Diamondbacks | Arizona Diamondbacks signed OF Chris Ellison. |
| Jun 9, 2011 | Signed | Seth Simmons | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP Seth Simmons. |
| Jun 9, 2011 | Signed | Alex Capaul | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP Alex Capaul. |
| Jun 9, 2011 | Signed | Derek Luciano | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP Derek Luciano. |
| Jun 9, 2011 | Signed | Ray Hernandez | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP Ray Hernandez. |
| Jun 9, 2011 | Signed | Samuel Taveras | — | Los Angeles Dodgers | Los Angeles Dodgers signed RHP Samuel Taveras. |
| Jun 9, 2011 | Signed as free agent | Gary Moran | — | Atlanta Braves | Atlanta Braves signed free agent RHP Gary Moran to a minor league contract. |
| Jun 9, 2011 | Signed | David Middendorf | — | Kansas City Royals | Kansas City Royals signed LHP David Middendorf. |
| Jun 9, 2011 | Signed | Pat Donahue | — | Arizona Diamondbacks | Arizona Diamondbacks signed SS Pat Donahue. |
| Jun 9, 2011 | Signed | Matt Rice | — | Tampa Bay Rays | Tampa Bay Rays signed C Matt Rice. |
| Jun 9, 2011 | Signed | Justin Gill | — | Houston Astros | Houston Astros signed RHP Justin Gill. |
| Jun 9, 2011 | Signed as free agent | Conrad Flynn | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Conrad Flynn to a minor league contract. |
| Jun 9, 2011 | Signed | Jarett Miller | — | Atlanta Braves | Atlanta Braves signed RHP Jarrett Miller. |
| Jun 9, 2011 | Signed | Greg Ross | — | Atlanta Braves | Atlanta Braves signed Greg Ross. |
| Jun 9, 2011 | Signed | Gus Schlosser | — | Atlanta Braves | Atlanta Braves signed RHP Gus Schlosser. |
| Jun 9, 2011 | Signed as free agent | Joe Weik | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent 1B Joseph Weik to a minor league contract. |
| Jun 9, 2011 | Signed | James Howick | — | Houston Astros | Houston Astros signed SS James Howick. |
| Jun 9, 2011 | Signed as free agent | José Marmolejos | — | Washington Nationals | Washington Nationals signed free agent 1B Jose Marmolejos to a minor league contract. |
| Jun 8, 2011 | Signed | Antonio Valerio | — | Chicago Cubs | Chicago Cubs signed C Antonio Valerio. |
| Jun 8, 2011 | Signed as free agent | Scott Rice | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent LHP Scott Rice to a minor league contract. |
| Jun 8, 2011 | Signed | Ben Alsup | — | Colorado Rockies | Colorado Rockies signed RHP Ben Alsup. |
| Jun 8, 2011 | Signed | Chad Oberacker | — | Athletics | Oakland Athletics signed OF Chad Oberacker. |
| Jun 8, 2011 | Signed | Max Perlman | — | Athletics | Oakland Athletics signed RHP Max Perlman. |
| Jun 8, 2011 | Signed as free agent | Jacob Meskin | — | Houston Astros | Houston Astros signed free agent C Jacob Meskin to a minor league contract. |
| Jun 8, 2011 | Signed | Trey Ford | — | Philadelphia Phillies | Philadelphia Phillies signed 3B Trey Ford. |
| Jun 8, 2011 | Signed | John Cornely | — | Atlanta Braves | Atlanta Braves signed RHP John Cornely. |
| Jun 8, 2011 | Signed | Nick DeSantiago | — | Atlanta Braves | Atlanta Braves signed C Nick DeSantiago. |
| Jun 8, 2011 | Signed | Tony Mueller | — | Atlanta Braves | Atlanta Braves signed OF Tony Mueller. |
| Jun 7, 2011 | Released | Jose Lopez | — | Colorado Rockies | Colorado Rockies released 3B Jose Lopez. |
| Jun 7, 2011 | Signed as free agent | Ronnier Mustelier | — | New York Yankees | New York Yankees signed free agent 2B Ronnier Mustelier to a minor league contract. |
| Jun 6, 2011 | Signed as free agent | Deinys Suarez | — | Minnesota Twins | Minnesota Twins signed free agent RHP Deinys Suarez to a minor league contract. |
| Jun 6, 2011 | Signed | John Ortega | — | Chicago Cubs | Chicago Cubs signed IF Jhon Ortega. |
| Jun 6, 2011 | Signed | Royel Astacio | — | San Francisco Giants | San Francisco Giants signed 3B Royel Astacio. |
| Jun 6, 2011 | Signed | Kolby Byrd | — | St. Louis Cardinals | St. Louis Cardinals signed C Kolby Byrd. |
| Jun 6, 2011 | Signed as free agent | Todd Van Steensel | — | Minnesota Twins | Minnesota Twins signed free agent RHP Todd Van Steensel to a minor league contract. |
| Jun 6, 2011 | Signed as free agent | Jonathan Aro | — | Boston Red Sox | Boston Red Sox signed free agent RHP Jonathan Aro to a minor league contract. |
| Jun 4, 2011 | Released | Bill Hall | — | Houston Astros | Houston Astros released 2B Bill Hall. |
| Jun 4, 2011 | Signed as free agent | Eddie Morlan | — | Atlanta Braves | Atlanta Braves signed free agent RHP Eddie Morlan to a minor league contract. |
| Jun 4, 2011 | Signed | Alan Williams | — | Milwaukee Brewers | Milwaukee Brewers signed LHP Alan Williams. |
| Jun 4, 2011 | Signed as free agent | Salvador Sanchez | — | Chicago White Sox | Chicago White Sox signed free agent RF Salvador Sanchez to a minor league contract. |
| Jun 4, 2011 | Signed as free agent | Daniel Batista | — | Cleveland Guardians | Cleveland Indians signed free agent C Daniel Batista to a minor league contract. |
| Jun 3, 2011 | Signed as free agent | Jim Paduch | — | Tampa Bay Rays | Tampa Bay Rays signed free agent RHP Jim Paduch to a minor league contract. |
| Jun 3, 2011 | Signed | Gregorio Mendez | — | Athletics | Oakland Athletics signed C Gregorio Mendez. |
| Jun 3, 2011 | Signed | Jorge Montenegro | — | Atlanta Braves | Atlanta Braves signed RHP Jorge Montenegro. |
| Jun 2, 2011 | Signed as free agent | Yhency Brazoban | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent Yhency Brazoban. |
| Jun 1, 2011 | Trade | Lucas May | Kansas City Royals | Arizona Diamondbacks | Kansas City Royals traded C Lucas May to Arizona Diamondbacks. |
| Jun 1, 2011 | Signed | Abinaer Soriano | — | Los Angeles Dodgers | Los Angeles Dodgers signed OF Abinaer Soriano. |
| Jun 1, 2011 | Signed as free agent | Manny Delcarmen | — | Texas Rangers | Texas Rangers signed free agent RHP Manny Delcarmen to a minor league contract. |
| Jun 1, 2011 | Signed as free agent | Emerson Frostad | — | Houston Astros | Houston Astros signed free agent C Emerson Frostad to a minor league contract. |
| Jun 1, 2011 | Signed as free agent | Tim Hamulack | — | Cincinnati Reds | Cincinnati Reds signed free agent LHP Tim Hamulack to a minor league contract. |
| Jun 1, 2011 | Signed as free agent | Junior Rodriguez | — | Tampa Bay Rays | Tampa Bay Rays signed free agent IF Junior Rodriguez to a minor league contract. |
| Jun 1, 2011 | Signed as free agent | Norge Paredes | — | St. Louis Cardinals | St. Louis Cardinals signed free agent RHP Norge Paredes to a minor league contract. |
| May 31, 2011 | Signed as free agent | Kevin Millwood | — | Boston Red Sox | Boston Red Sox signed free agent RHP Kevin Millwood to a minor league contract. |
| May 31, 2011 | Signed | Juandalys Hernandez | — | Chicago White Sox | Chicago White Sox signed RHP Juandalys Hernandez. |
| May 31, 2011 | Signed | Terry Evans | — | Philadelphia Phillies | Philadelphia Phillies signed OF Terry Evans. |
| May 31, 2011 | Released | Lance Cormier | — | Los Angeles Dodgers | Los Angeles Dodgers released RHP Lance Cormier. |
| May 31, 2011 | Signed as free agent | Franyer Ramirez | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent 1B Franyer Ramirez to a minor league contract. |
| May 31, 2011 | Signed as free agent | Deiber Olivera | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Deiber Olivera to a minor league contract. |
| May 31, 2011 | Signed as free agent | Carlos Estévez | — | Colorado Rockies | Colorado Rockies signed free agent RHP Carlos Estevez to a minor league contract. |
| May 30, 2011 | Signed | Enyel Cuevas | — | Arizona Diamondbacks | Arizona Diamondbacks signed LHP Enyel Cuevas. |
| May 30, 2011 | Signed | Juan Heredia | — | Arizona Diamondbacks | Arizona Diamondbacks signed SS Juan Heredia. |
| May 30, 2011 | Signed | Gerald Ferrer | — | Atlanta Braves | Atlanta Braves signed RHP Gerald Ferrer. |
| May 30, 2011 | Signed | Pedro Araújo | — | Chicago Cubs | Chicago Cubs signed RHP Pedro Araujo. |
| May 30, 2011 | Signed | Manuel Fuentes | — | Chicago Cubs | Chicago Cubs signed LHP Manuel Fuentes. |
| May 29, 2011 | Signed | Luis Cedeno | — | Texas Rangers | Texas Rangers signed C Luis Cedeno. |
| May 29, 2011 | Signed as free agent | Aaron Shafer | — | Atlanta Braves | Atlanta Braves signed free agent RHP Aaron Shafer to a minor league contract. |
| May 28, 2011 | Signed | Junior Rincon | — | Miami Marlins | Florida Marlins signed RHP Junior Rincon. |
| May 28, 2011 | Signed | Andrew Shellon | — | Los Angeles Dodgers | Los Angeles Dodgers signed RHP Andrew Shellon. |
| May 27, 2011 | Trade | Felipe Paulino | Colorado Rockies | Kansas City Royals | Colorado Rockies traded RHP Felipe Paulino to Kansas City Royals. |
| May 27, 2011 | Trade | Scott Sizemore | Detroit Tigers | Athletics | Detroit Tigers traded 2B Scott Sizemore to Oakland Athletics for LHP David Purcey. |
| May 27, 2011 | Signed | Mauricio Cabrera | — | Atlanta Braves | Atlanta Braves signed RHP Mauricio Cabrera. |
| May 27, 2011 | Signed | Oriel L Caicedo | — | Atlanta Braves | Atlanta Braves signed LHP Oriel L Caicedo. |
| May 27, 2011 | Signed | Francisco Cambuston | — | Atlanta Braves | Atlanta Braves signed RHP Jesus Cambuston. |
| May 27, 2011 | Signed as free agent | Scott Podsednik | — | Philadelphia Phillies | Philadelphia Phillies signed free agent CF Scott Podsednik to a minor league contract. |
| May 27, 2011 | Signed | Carlos Sanchez | — | Atlanta Braves | Atlanta Braves signed C Carlos Sanchez. |
| May 27, 2011 | Signed | Robinson Arno | — | Atlanta Braves | Atlanta Braves signed 3B Robinson Arno. |
| May 27, 2011 | Signed | José Peraza | — | Atlanta Braves | Atlanta Braves signed SS Jose Peraza. |
| May 27, 2011 | Signed | Camilo Pajaro | — | Atlanta Braves | Atlanta Braves signed OF Camilo Pajaro. |
| May 27, 2011 | Signed | Ricardo Ciriaco | — | Detroit Tigers | Detroit Tigers signed RHP Ricardo Ciriaco. |
| May 27, 2011 | Signed | Reynaldo Gonzalez | — | Cincinnati Reds | Cincinnati Reds signed LHP Reynaldo Gonzalez. |
| May 27, 2011 | Signed | Bernardo Moreta | — | Cincinnati Reds | Cincinnati Reds signed RHP Bernardo Moreta. |
| May 27, 2011 | Signed | Olivel Florentino | — | Cincinnati Reds | Cincinnati Reds signed IF Oviel Florentino. |
| May 27, 2011 | Signed | Jose Valdelamar | — | Cincinnati Reds | Cincinnati Reds signed OF Jose Valdelamar. |
| May 27, 2011 | Signed | Edwin Moreno | — | San Diego Padres | San Diego Padres signed OF Edwin Moreno. |
| May 27, 2011 | Signed as free agent | Frank Garces | — | San Diego Padres | San Diego Padres signed free agent LHP Frank Garces to a minor league contract. |
| May 27, 2011 | Signed | Kelvis Valerio | — | Chicago White Sox | Chicago White Sox signed RHP Kelvis Valerio. |
| May 27, 2011 | Signed | Argenis Raga | — | Athletics | Oakland Athletics signed C Argenis Raga. |
| May 27, 2011 | Signed | Agapito Barrios | — | Houston Astros | Houston Astros signed RHP Agapito Barrios. |
| May 27, 2011 | Signed | Yefaine Jerald | — | Pittsburgh Pirates | Pittsburgh Pirates signed OF Yefaine Gerald. |
| May 27, 2011 | Signed | Brawlun Gomez | — | Kansas City Royals | Kansas City Royals signed OF Brawlun Gomez. |
| May 27, 2011 | Signed | Elvis Sanchez | — | New York Mets | New York Mets signed 3B Elvis Sanchez. |
| May 27, 2011 | Signed | J.C. Rodriguez | — | New York Mets | New York Mets signed SS Jean Rodriguez. |
| May 27, 2011 | Signed | Victor Cruzado | — | New York Mets | New York Mets signed SS Victor Cruzado. |
| May 27, 2011 | Signed | Adrian Roso | — | Los Angeles Dodgers | Los Angeles Dodgers signed SS Adrian Roso. |
| May 27, 2011 | Signed | Edwin Coplin | — | Los Angeles Dodgers | Los Angeles Dodgers signed OF Edwin Coplin. |
| May 27, 2011 | Signed | Sawil Gonzalez | — | Los Angeles Dodgers | Los Angeles Dodgers signed RHP Sawil Gonzalez. |
| May 27, 2011 | Signed | Ynoel Aguero | — | Boston Red Sox | Boston Red Sox signed OF Ynoel Aguero. |
| May 27, 2011 | Signed | Anthony Amaya | — | Boston Red Sox | Boston Red Sox signed OF Anthony Amaya. |
| May 27, 2011 | Signed | Christopher Tamarez | — | New York Yankees | New York Yankees signed SS Christopher Tamarez. |
| May 27, 2011 | Signed | Renzo Martini | — | New York Yankees | New York Yankees signed 3B Renzo Martini. |
| May 27, 2011 | Signed | Josias Sanchez | — | New York Yankees | New York Yankees signed Josias Sanchez. |
| May 27, 2011 | Signed | Dionicio De La Cruz | — | Miami Marlins | Florida Marlins signed OF Dionicio De La Cruz. |
| May 27, 2011 | Signed | Luis Marté | — | Texas Rangers | Texas Rangers signed SS Luis Marte. |
| May 27, 2011 | Signed | Juan Garcia | — | Cleveland Guardians | Cleveland Indians signed RHP Juan Garcia. |
| May 27, 2011 | Signed | Edwin Espinal | — | Pittsburgh Pirates | Pittsburgh Pirates signed 3B Edwin Espinal. |
| May 27, 2011 | Signed | Yamil Rios | — | Kansas City Royals | Kansas City Royals signed LHP Yamil Rios. |
| May 27, 2011 | Signed | Jorge Reyes | — | Los Angeles Dodgers | Los Angeles Dodgers signed SS Jorge Reyes. |
| May 27, 2011 | Signed | Luis Silverio | — | Los Angeles Dodgers | Los Angeles Dodgers signed LHP Luis Silverio. |
| May 27, 2011 | Signed as free agent | Jarlín García | — | Miami Marlins | Florida Marlins signed free agent LHP Jarlin Garcia to a minor league contract. |
| May 27, 2011 | Signed | Ketel Marte | — | Seattle Mariners | Seattle Mariners signed SS Ketel Marte. |
| May 27, 2011 | Signed | Edison Frias | — | Houston Astros | Houston Astros signed RHP Edison Frias. |
| May 27, 2011 | Signed | Milton Gomez | — | Milwaukee Brewers | Milwaukee Brewers signed RHP Milton Gomez. |
| May 27, 2011 | Signed | Carlos Torres | — | St. Louis Cardinals | St. Louis Cardinals signed OF Carlos Torres. |
| May 27, 2011 | Signed | Hector Salazar | — | St. Louis Cardinals | St. Louis Cardinals signed RHP Hector Salazar. |
| May 27, 2011 | Signed | Aneury Tavárez | — | Boston Red Sox | Boston Red Sox signed 2B Aneury Tavarez. |
| May 27, 2011 | Signed | Edward Estrella | — | Cleveland Guardians | Cleveland Indians signed RHP Edward Estrella. |
| May 27, 2011 | Signed | Erick Lara | — | Miami Marlins | Florida Marlins signed SS Erick Lara. |
| May 27, 2011 | Signed | Manuel Vallejo | — | Miami Marlins | Florida Marlins signed SS Manuel Vallejo. |
| May 27, 2011 | Signed | Yeison Del Rosario | — | Miami Marlins | Florida Marlins signed OF Yeison Del Rosario. |
| May 27, 2011 | Signed | Juan Delis | — | Houston Astros | Houston Astros signed RHP Juan Delis. |
| May 27, 2011 | Signed | Javier Saucedo | — | Houston Astros | Houston Astros signed LHP Javier Saucedo. |
| May 27, 2011 | Signed | Jose Miguel Rodriguez | — | Kansas City Royals | Kansas City Royals signed RHP Jose Miguel Rodriguez. |
| May 27, 2011 | Signed | Jose Solano | — | Kansas City Royals | Kansas City Royals signed OF Jose Solano. |
| May 27, 2011 | Signed | Nataniel Rodriguez | — | Los Angeles Angels | Los Angeles Angels signed LHP Nataniel Rodriguez. |
| May 27, 2011 | Signed as free agent | Erik Cabrera | — | San Diego Padres | San Diego Padres signed free agent RHP Erik Cabrera to a minor league contract. |
| May 27, 2011 | Signed | Daniel Arribas | — | Pittsburgh Pirates | Pittsburgh Pirates signed C Daniel Arribas. |
| May 27, 2011 | Signed | Bladimir Aquino | — | Los Angeles Angels | Los Angeles Angels signed C Bladimir Aquino. |
| May 27, 2011 | Signed | Luis Mateo | — | New York Mets | New York Mets signed RHP Luis Mateo. |
| May 27, 2011 | Signed as free agent | Ivan Pineyro | — | Washington Nationals | Washington Nationals signed free agent RHP Ivan Pineyro to a minor league contract. |
| May 26, 2011 | Signed as free agent | Adolfo Flores | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent RHP Adolfo Flores to a minor league contract. |
| May 26, 2011 | Signed as free agent | Juan Mendoza | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent RHP Juan Mendoza to a minor league contract. |
| May 26, 2011 | Signed as free agent | Anthony Claudio | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent OF Anthony Claudio to a minor league contract. |
| May 26, 2011 | Signed as free agent | Julio Lugo | — | Atlanta Braves | Atlanta Braves signed free agent 2B Julio Lugo to a minor league contract. |
| May 26, 2011 | Trade | Rodrigo Lopez | Atlanta Braves | Chicago Cubs | Chicago Cubs traded LHP Ryan Buchter to Atlanta Braves for RHP Rodrigo Lopez. |
| May 26, 2011 | Signed as free agent | Matthew Frevert | — | Atlanta Braves | Atlanta Braves signed free agent RHP Matthew Frevert to a minor league contract. |
| May 26, 2011 | Signed as free agent | Tim Gustafson | — | Cincinnati Reds | Cincinnati Reds signed free agent RHP Tim Gustafson to a minor league contract. |
| May 26, 2011 | Signed as free agent | Les Walrond | — | Philadelphia Phillies | Philadelphia Phillies signed free agent LHP Les Walrond to a minor league contract. |
| May 25, 2011 | Signed as free agent | Keybel Escobar | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent OF Keybel Escobar to a minor league contract. |
| May 24, 2011 | Signed as free agent | Nick McCully | — | Chicago White Sox | Chicago White Sox signed free agent RHP Nick McCully to a minor league contract. |
| May 23, 2011 | Signed | Emilio Guerrero | — | Toronto Blue Jays | Toronto Blue Jays signed SS Emilio Guerrero. |
| May 23, 2011 | Signed as free agent | Brad Hennessey | — | Houston Astros | Houston Astros signed free agent RHP Brad Hennessey to a minor league contract. |
| May 22, 2011 | Signed as free agent | Steven Jackson | — | Cincinnati Reds | Cincinnati Reds signed free agent RHP Steven Jackson to a minor league contract. |
| May 22, 2011 | Signed as free agent | Felix Santos | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Felix Santos to a minor league contract. |
| May 21, 2011 | Released | Russell Branyan | — | Arizona Diamondbacks | Arizona Diamondbacks released 1B Russell Branyan. |
| May 21, 2011 | Signed as free agent | Lenny DiNardo | — | Athletics | Oakland Athletics signed free agent LHP Lenny DiNardo to a minor league contract. |
| May 21, 2011 | Signed as free agent | Robert Ray | — | Toronto Blue Jays | Toronto Blue Jays signed free agent RHP Robert Ray to a minor league contract. |
| May 21, 2011 | Signed as free agent | Luis Meza | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent RHP Luis Meza to a minor league contract. |
| May 20, 2011 | Trade | Franklin Morales | Colorado Rockies | Boston Red Sox | Colorado Rockies traded LHP Franklin Morales to Boston Red Sox. |
| May 20, 2011 | Signed as free agent | Ian Snell | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent RHP Ian Snell to a minor league contract. |
| May 20, 2011 | Signed as free agent | Carlos Yan | — | Colorado Rockies | Colorado Rockies signed free agent RHP Carlos Yan to a minor league contract. |
| May 20, 2011 | Signed as free agent | Daniel Lantigua | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent RHP Daniel Lantigua to a minor league contract. |
| May 19, 2011 | Signed as free agent | Jason Botts | — | New York Mets | New York Mets signed free agent 1B Jason Botts to a minor league contract. |
| May 19, 2011 | Released | Robert Ray | — | Toronto Blue Jays | Toronto Blue Jays released RHP Robert Ray. |
| May 19, 2011 | Signed as free agent | Steven Shell | — | Atlanta Braves | Atlanta Braves signed free agent RHP Steven Shell to a minor league contract. |
| May 18, 2011 | Signed as free agent | Luis Dela Cruz | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Luis Dela Cruz to a minor league contract. |
| May 18, 2011 | Signed as free agent | Juan Marte | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Juan Marte to a minor league contract. |
| May 18, 2011 | Signed as free agent | Christopher Huseby | — | Boston Red Sox | Boston Red Sox signed free agent RHP Christopher Huseby to a minor league contract. |
| May 17, 2011 | Signed as free agent | Randy Flores | — | New York Yankees | New York Yankees signed free agent LHP Randy Flores to a minor league contract. |
| May 17, 2011 | Signed | Edgar Munoz | — | Pittsburgh Pirates | Pittsburgh Pirates signed OF Edgardo Munoz. |
| May 16, 2011 | Released | Milton Bradley | — | Seattle Mariners | Seattle Mariners released LF Milton Bradley. |
| May 16, 2011 | Trade | Adam Calderone | Toronto Blue Jays | Detroit Tigers | Toronto Blue Jays traded OF Adam Calderone to Detroit Tigers. |
| May 16, 2011 | Signed as free agent | Liam Bedford | — | Philadelphia Phillies | Philadelphia Phillies signed free agent C Liam Bedford. |
| May 16, 2011 | Signed as free agent | Jose Veras | — | Kansas City Royals | Kansas City Royals signed free agent RHP Jose Veras to a minor league contract. |
| May 15, 2011 | Signed as free agent | Kyle Davis | — | Atlanta Braves | Atlanta Braves signed free agent SS Kyle Davis to a minor league contract. |
| May 15, 2011 | Signed as free agent | Polin Trinidad | — | Athletics | Oakland Athletics signed free agent LHP Polin Trinidad to a minor league contract. |
| May 14, 2011 | Signed as free agent | James Skelton | — | Cincinnati Reds | Cincinnati Reds signed free agent C James Skelton to a minor league contract. |
| May 14, 2011 | Released | Scott Olsen | — | Pittsburgh Pirates | Pittsburgh Pirates released LHP Scott Olsen. |
| May 13, 2011 | Trade | Bubba Bell | Cleveland Guardians | New York Mets | Cleveland Indians traded RF Bubba Bell to New York Mets. |
| May 12, 2011 | Signed as free agent | Luis Figueroa | — | New York Mets | New York Mets signed free agent SS Luis Figueroa to a minor league contract. |
| May 12, 2011 | Signed as free agent | Yimmi Brasoban | — | San Diego Padres | San Diego Padres signed free agent RHP Jimmy Brasoban to a minor league contract. |
| May 12, 2011 | Signed as free agent | Yeisson Rosario | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent OF Yeisson Rosario to a minor league contract. |
| May 12, 2011 | Signed as free agent | Gregoris Hidalgo | — | Detroit Tigers | Detroit Tigers signed free agent SS Gregoris Hidalgo to a minor league contract. |
| May 11, 2011 | Signed | Jason Ray | — | San Diego Padres | San Diego Padres signed RHP Jason Ray. |
| May 10, 2011 | Signed as free agent | Brent Clevlen | — | Cincinnati Reds | Cincinnati Reds signed free agent LF Brent Clevlen to a minor league contract. |
| May 9, 2011 | Signed as free agent | Aaron Bates | — | Minnesota Twins | Minnesota Twins signed free agent 1B Aaron Bates to a minor league contract. |
| May 9, 2011 | Signed as free agent | Max Ramirez | — | Houston Astros | Houston Astros signed free agent C Max Ramirez to a minor league contract. |
| May 9, 2011 | Signed as free agent | Joey Meneses | — | Atlanta Braves | Atlanta Braves signed free agent LF Joey Meneses to a minor league contract. |
| May 7, 2011 | Signed as free agent | Marek Minarik | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Marek Minarik to a minor league contract. |
| May 6, 2011 | Signed as free agent | Andy González | — | Milwaukee Brewers | Milwaukee Brewers signed free agent SS Andy Gonzalez to a minor league contract. |
| May 6, 2011 | Signed as free agent | Deimer Bier | — | Tampa Bay Rays | Tampa Bay Rays signed free agent RHP Deimer Bier to a minor league contract. |
| May 6, 2011 | Signed as free agent | Francis Beltran | — | Houston Astros | Houston Astros signed free agent RHP Francis Beltran to a minor league contract. |
| May 5, 2011 | Signed as free agent | Brian Sweeney | — | New York Mets | New York Mets signed free agent RHP Brian Sweeney to a minor league contract. |
| May 5, 2011 | Signed as free agent | Ryan Hamme | — | Detroit Tigers | Detroit Tigers signed free agent RF Ryan Hamme to a minor league contract. |
| May 5, 2011 | Signed as free agent | Geno Espineli | — | San Francisco Giants | San Francisco Giants signed free agent LHP Geno Espineli to a minor league contract. |
| May 5, 2011 | Signed | Richelson Peña | — | Texas Rangers | Texas Rangers signed RHP Richelson Pena. |
| May 5, 2011 | Signed | Willie Canelo | — | Los Angeles Dodgers | Los Angeles Dodgers signed LHP Willie Canelo. |
| May 4, 2011 | Signed as free agent | Leonys Martin | — | Texas Rangers | Texas Rangers signed free agent CF Leonys Martin. |
| May 4, 2011 | Signed as free agent | Ysrael Abreu | — | Kansas City Royals | Kansas City Royals signed free agent RHP Ysrael Abreu to a minor league contract. |
| May 4, 2011 | Signed as free agent | Daniel Vavrusa | — | New York Yankees | New York Yankees signed free agent C Daniel Vavrusa to a minor league contract. |
| May 4, 2011 | Signed as free agent | Roybell Herrera | — | New York Yankees | New York Yankees signed free agent C Roybell Herrera to a minor league contract. |
| May 3, 2011 | Signed as free agent | Matt Cusick | — | Los Angeles Angels | Los Angeles Angels signed free agent 2B Matt Cusick to a minor league contract. |
| May 3, 2011 | Signed as free agent | Hainley Statia | — | Milwaukee Brewers | Milwaukee Brewers signed free agent SS Hainley Statia to a minor league contract. |
| May 3, 2011 | Signed as free agent | John Housey | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent RHP John Housey to a minor league contract. |
| May 3, 2011 | Signed | Manny Corpas | — | Texas Rangers | Texas Rangers signed RHP Manny Corpas. |
| May 2, 2011 | Signed as free agent | Angel Lezama | — | Colorado Rockies | Colorado Rockies signed free agent RHP Angel Lezama to a minor league contract. |
| May 2, 2011 | Signed as free agent | Ismael Alcantara | — | Seattle Mariners | Seattle Mariners signed free agent 3B Ismael Alcantara to a minor league contract. |
| May 1, 2011 | Signed as free agent | Ryan Acosta | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent RHP Ryan Acosta to a minor league contract. |
| May 1, 2011 | Signed as free agent | Joher Caldera | — | Cincinnati Reds | Cincinnati Reds signed free agent LHP Joher Caldera to a minor league contract. |
| May 1, 2011 | Signed as free agent | Jose Lugo | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent C Jose Lugo to a minor league contract. |
| May 1, 2011 | Signed as free agent | Cristopher Rodriguez | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent C Cristopher Rodriguez to a minor league contract. |
| May 1, 2011 | Signed as free agent | Esnairy Baptist | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent OF Esnairy Baptist to a minor league contract. |
| May 1, 2011 | Signed as free agent | Fleming Pena | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Fleming Pena to a minor league contract. |
| May 1, 2011 | Signed as free agent | Joel Payamps | — | Colorado Rockies | Colorado Rockies signed free agent RHP Joel Payamps to a minor league contract. |
| May 1, 2011 | Signed as free agent | Hector Veloz | — | Baltimore Orioles | Baltimore Orioles signed free agent 3B Hector Veloz to a minor league contract. |
| May 1, 2011 | Signed as free agent | Jose Ortiz | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent C Jose Ortiz to a minor league contract. |
| May 1, 2011 | Signed as free agent | Josh Worrell | — | San Diego Padres | San Diego Padres signed free agent RHP Josh Worrell to a minor league contract. |
| May 1, 2011 | Signed as free agent | Ricky Bowen | — | Minnesota Twins | Minnesota Twins signed free agent RHP Ricky Bowen to a minor league contract. |
| May 1, 2011 | Signed as free agent | Tim Atherton | — | Minnesota Twins | Minnesota Twins signed free agent RHP Tim Atherton to a minor league contract. |
| Apr 30, 2011 | Trade | John Hester | Arizona Diamondbacks | Baltimore Orioles | Arizona Diamondbacks traded John Hester to Baltimore Orioles. |
| Apr 28, 2011 | Signed as free agent | Jay Johnson | — | Philadelphia Phillies | Philadelphia Phillies signed free agent LHP Jay Johnson to a minor league contract. |
| Apr 28, 2011 | Signed as free agent | Brad Halsey | — | New York Yankees | New York Yankees signed free agent LHP Brad Halsey to a minor league contract. |
| Apr 28, 2011 | Signed as free agent | Marcus Nidiffer | — | Los Angeles Angels | Los Angeles Angels signed free agent 1B Marcus Nidiffer to a minor league contract. |
| Apr 27, 2011 | Signed as free agent | Severino González | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Severino Gonzalez to a minor league contract. |
| Apr 26, 2011 | Signed as free agent | Eduardo Miliani | — | Seattle Mariners | Seattle Mariners signed free agent RHP Eduardo Miliani to a minor league contract. |
| Apr 25, 2011 | Signed as free agent | Hugo Garcia | — | Tampa Bay Rays | Tampa Bay Rays signed free agent RHP Hugo Garcia. |
| Apr 25, 2011 | Signed as free agent | John Zapata | — | Cincinnati Reds | Cincinnati Reds signed free agent RHP John Zapata to a minor league contract. |
| Apr 25, 2011 | Signed as free agent | Jose Raga | — | Cincinnati Reds | Cincinnati Reds signed free agent C Jose Raga to a minor league contract. |
| Apr 25, 2011 | Signed as free agent | Ramon Sarrameda | — | Cincinnati Reds | Cincinnati Reds signed free agent RHP Ramon Sarrameda to a minor league contract. |
| Apr 25, 2011 | Signed as free agent | Carlos Patino | — | Cincinnati Reds | Cincinnati Reds signed free agent RHP Carlos Patino to a minor league contract. |
| Apr 22, 2011 | Trade | Chris Malone | Colorado Rockies | Toronto Blue Jays | Colorado Rockies traded RHP Chris Malone to Toronto Blue Jays. |
| Apr 22, 2011 | Released | Jose Ortegano | — | New York Yankees | New York Yankees released LHP Jose Ortegano. |
| Apr 22, 2011 | Signed as free agent | Tug Hulett | — | Washington Nationals | Washington Nationals signed free agent 2B Tug Hulett to a minor league contract. |
| Apr 21, 2011 | Signed as free agent | Quintin Berry | — | Cincinnati Reds | Cincinnati Reds signed free agent CF Quintin Berry to a minor league contract. |
| Apr 21, 2011 | Signed as free agent | Steven Caseres | — | Kansas City Royals | Kansas City Royals signed free agent 1B Steven Caseres to a minor league contract. |
| Apr 20, 2011 | Signed as free agent | Hilton Richardson | — | Atlanta Braves | Atlanta Braves signed free agent CF Hilton Richardson to a minor league contract. |
| Apr 18, 2011 | Trade | David Purcey | Toronto Blue Jays | Athletics | Toronto Blue Jays Traded LHP David Purcey to Oakland Athletics and Sacramento River Cats Traded RHP Danny Farquhar to Las Vegas 51s. |
| Apr 18, 2011 | Signed as free agent | Eric Duncan | — | St. Louis Cardinals | St. Louis Cardinals signed free agent 2B Eric Duncan to a minor league contract. |
| Apr 18, 2011 | Signed as free agent | Blaine Boyer | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent RHP Blaine Boyer to a minor league contract. |
| Apr 18, 2011 | Signed | Joe Bisenius | — | Chicago White Sox | Chicago White Sox signed RHP Joe Bisenius. |
| Apr 16, 2011 | Signed as free agent | Brett Sinkbeil | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent RHP Brett Sinkbeil to a minor league contract. |
| Apr 15, 2011 | Signed as free agent | Brian Lawrence | — | Los Angeles Angels | Los Angeles Angels signed free agent RHP Brian Lawrence to a minor league contract. |
| Apr 15, 2011 | Signed as free agent | Angel Salome | — | Seattle Mariners | Seattle Mariners signed free agent OF Angel Salome to a minor league contract. |
| Apr 13, 2011 | Signed as free agent | Adrian Alaniz | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Adrian Alaniz to a minor league contract. |
| Apr 11, 2011 | Signed as free agent | Doug Davis | — | Chicago Cubs | Chicago Cubs signed free agent LHP Doug Davis to a minor league contract. |
| Apr 11, 2011 | Signed | Francisco Castillo | — | New York Yankees | New York Yankees signed RHP Francisco Castillo. |
| Apr 11, 2011 | Signed as free agent | Reinier Casanova | — | New York Yankees | New York Yankees signed free agent RHP Reinier Casanova to a minor league contract. |
| Apr 11, 2011 | Signed as free agent | Josiah Atkins | — | Kansas City Royals | Kansas City Royals signed free agent C Josiah Atkins to a minor league contract. |
| Apr 11, 2011 | Signed | Aaron Sayers | — | Detroit Tigers | Detroit Tigers signed SS Aaron Sayers. |
| Apr 9, 2011 | Signed as free agent | Carlos Silva | — | New York Yankees | New York Yankees signed free agent RHP Carlos Silva to a minor league contract. |
| Apr 9, 2011 | Signed as free agent | Bealyn Chourio | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent SS Bealyn Chourio to a minor league contract. |
| Apr 9, 2011 | Signed as free agent | Jorge Mendoza | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent RHP Jorge Mendoza to a minor league contract. |
| Apr 9, 2011 | Signed as free agent | Luis Rico | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent LHP Luis Rico to a minor league contract. |
| Apr 9, 2011 | Signed as free agent | Julio Vivas | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent RHP Julio Vivas to a minor league contract. |
| Apr 9, 2011 | Signed as free agent | Alexander Gutierrez | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent LHP Alexander Gutierrez to a minor league contract. |
| Apr 9, 2011 | Signed as free agent | Andres Mendoza | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent RHP Andres Mendoza to a minor league contract. |
| Apr 9, 2011 | Signed as free agent | Andy Otamendi | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent LHP Andy Otamendi to a minor league contract. |
| Apr 9, 2011 | Signed as free agent | Jesus Paredes | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent LHP Jesus Paredes to a minor league contract. |
| Apr 9, 2011 | Signed as free agent | Edgardo Rangel | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent C Edgardo Rangel to a minor league contract. |
| Apr 9, 2011 | Signed as free agent | Jose Salazar | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent SS Jose Salazar to a minor league contract. |
| Apr 9, 2011 | Signed as free agent | Dan Urbina | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent RHP Dan Urbina to a minor league contract. |
| Apr 9, 2011 | Signed as free agent | Jorge Ortega | — | Milwaukee Brewers | Milwaukee Brewers signed free agent RHP Jorge Ortega to a minor league contract. |
| Apr 8, 2011 | Signed as free agent | Ron Mahay | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent LHP Ron Mahay to a minor league contract. |
| Apr 8, 2011 | Signed as free agent | Oscar Salazar | — | Miami Marlins | Florida Marlins signed free agent LF Oscar Salazar to a minor league contract. |
| Apr 7, 2011 | Signed as free agent | Drew Thompson | — | Chicago White Sox | Chicago White Sox signed free agent 2B Drew Thompson to a minor league contract. |
| Apr 6, 2011 | Signed as free agent | Erik Lis | — | Miami Marlins | Florida Marlins signed free agent 1B Erik Lis to a minor league contract. |
| Apr 6, 2011 | Signed as free agent | Dewayne Wise | — | Toronto Blue Jays | Toronto Blue Jays signed free agent CF Dewayne Wise to a minor league contract. |
| Apr 6, 2011 | Signed as free agent | Samil De Los Santos | — | Houston Astros | Houston Astros signed free agent RHP Samil De Los Santos to a minor league contract. |
| Apr 5, 2011 | Signed as free agent | Dan Meyer | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent LHP Dan Meyer to a minor league contract. |
| Apr 5, 2011 | Signed as free agent | Preston Mattingly | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent LF Preston Mattingly to a minor league contract. |
| Apr 4, 2011 | Signed as free agent | Jeff Suppan | — | Kansas City Royals | Kansas City Royals signed free agent RHP Jeff Suppan to a minor league contract. |
| Apr 2, 2011 | Signed as free agent | Scott Proctor | — | Atlanta Braves | Atlanta Braves signed free agent RHP Scott Proctor to a minor league contract. |
| Apr 1, 2011 | Signed as free agent | Ronnie Belliard | — | Philadelphia Phillies | Philadelphia Phillies signed free agent 2B Ronnie Belliard to a minor league contract. |
| Apr 1, 2011 | Signed as free agent | Josh Wilson | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent SS Josh Wilson to a minor league contract. |
| Apr 1, 2011 | Signed as free agent | Joe Koshansky | — | San Francisco Giants | San Francisco Giants signed free agent Joe Koshansky. |
| Apr 1, 2011 | Signed as free agent | Jeremy Slayden | — | Philadelphia Phillies | Philadelphia Phillies signed free agent OF Jeremy Slayden to a minor league contract. |
| Apr 1, 2011 | Signed as free agent | Tim Wood | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent RHP Tim Wood to a minor league contract. |
| Apr 1, 2011 | Signed as free agent | Justin Orenduff | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent RHP Justin Orenduff to a minor league contract. |
| Mar 31, 2011 | Released | Tim Wood | — | Washington Nationals | Washington Nationals released RHP Tim Wood. |
| Mar 31, 2011 | Released | Joe Bisenius | — | Washington Nationals | Washington Nationals released RHP Joe Bisenius. |
| Mar 31, 2011 | Released | Romulo Sanchez | — | New York Yankees | New York Yankees released RHP Romulo Sanchez. |
| Mar 31, 2011 | Signed as free agent | Chris Martin | — | Boston Red Sox | Boston Red Sox signed free agent RHP Chris Martin to a minor league contract. |
| Mar 31, 2011 | Signed as free agent | Geraldo Valor | — | Cincinnati Reds | Cincinnati Reds signed free agent SS Geraldo Valor to a minor league contract. |
| Mar 30, 2011 | Released | Dewayne Wise | — | Miami Marlins | Florida Marlins released CF Dewayne Wise. |
| Mar 30, 2011 | Released | Billy Wagner | — | Atlanta Braves | Atlanta Braves released LHP Billy Wagner. |
| Mar 29, 2011 | Trade | Jayson Nix | Cleveland Guardians | Toronto Blue Jays | Cleveland Indians traded 3B Jayson Nix to Toronto Blue Jays. |
| Mar 29, 2011 | Released | Jeff Suppan | — | San Francisco Giants | San Francisco Giants released RHP Jeff Suppan. |
| Mar 29, 2011 | Released | Carlos Rosa | — | Arizona Diamondbacks | Arizona Diamondbacks released RHP Carlos Rosa. |
| Mar 29, 2011 | Signed as free agent | Alexander De La Cruz | — | Atlanta Braves | Atlanta Braves signed free agent C Alexander De La Cruz to a minor league contract. |
| Mar 28, 2011 | Trade | Matt Treanor | Texas Rangers | Kansas City Royals | Texas Rangers traded C Matt Treanor to Kansas City Royals. |
| Mar 28, 2011 | Released | Randy Winn | — | Baltimore Orioles | Baltimore Orioles released CF Randy Winn. |
| Mar 28, 2011 | Released | Josh Wilson | — | Seattle Mariners | Seattle Mariners released SS Josh Wilson. |
| Mar 28, 2011 | Trade | Josh Fields | Pittsburgh Pirates | Rocky Mountain Vibes | Pittsburgh Pirates traded 3B Josh Fields to Colorado Springs Sky Sox. |
| Mar 28, 2011 | Trade | Alberto Gonzalez | Washington Nationals | San Diego Padres | San Antonio Missions Traded RHP Erik Davis to Harrisburg Senators; Washington Nationals Traded 2B Alberto Gonzalez to San Diego Padres and San Diego Padres Traded cash to Washington Nationals. |
| Mar 28, 2011 | Released | Oscar Salazar | — | San Diego Padres | San Diego Padres released 2B Oscar Salazar. |
| Mar 28, 2011 | Signed as free agent | Luis Alfonso Cruz | — | Texas Rangers | Texas Rangers signed free agent SS Luis Alfonso Cruz to a minor league contract. |
| Mar 28, 2011 | Released | Ronnie Belliard | — | New York Yankees | New York Yankees released 2B Ronnie Belliard. |
| Mar 28, 2011 | Signed as free agent | Kyle Eveland | — | Chicago White Sox | Chicago White Sox signed free agent SS Kyle Eveland to a minor league contract. |
| Mar 28, 2011 | Signed | Gustavo Martinez | — | Philadelphia Phillies | Philadelphia Phillies signed OF Gustavo Martinez. |
| Mar 27, 2011 | Trade | Nyjer Morgan | Washington Nationals | Milwaukee Brewers | Washington Nationals Traded CF Nyjer Morgan to Milwaukee Brewers and Wisconsin Timber Rattlers Traded DH Cutter Dykstra to Potomac Nationals. |
| Mar 27, 2011 | Released | Carlos Silva | — | Chicago Cubs | Chicago Cubs released RHP Carlos Silva. |
| Mar 27, 2011 | Trade | Joe Inglett | Tampa Bay Rays | Houston Astros | Tampa Bay Rays traded RF Joe Inglett to Houston Astros. |
| Mar 27, 2011 | Released | Scott Proctor | — | Atlanta Braves | Atlanta Braves released RHP Scott Proctor. |
| Mar 27, 2011 | Released | Pedro Feliz | — | Kansas City Royals | Kansas City Royals released 3B Pedro Feliz. |
| Mar 26, 2011 | Released | Ron Mahay | — | Los Angeles Dodgers | Los Angeles Dodgers released LHP Ron Mahay. |
| Mar 26, 2011 | Released | Gabe Gross | — | Seattle Mariners | Seattle Mariners released LF Gabe Gross. |
| Mar 25, 2011 | Trade | Sergio Mitre | New York Yankees | Milwaukee Brewers | Milwaukee Brewers traded LF Chris Dickerson to New York Yankees for RHP Sergio Mitre. |
| Mar 25, 2011 | Signed as free agent | Kevin Millwood | — | New York Yankees | New York Yankees signed free agent RHP Kevin Millwood to a minor league contract. |
| Mar 25, 2011 | Released | Kevin Frandsen | — | San Diego Padres | San Diego Padres released 3B Kevin Frandsen. |
| Mar 25, 2011 | Trade | Gaby Hernandez | Kansas City Royals | Charlotte Knights | Kansas City Royals traded RHP Gaby Hernandez to Charlotte Knights. |
| Mar 25, 2011 | Released | Braden Looper | — | Chicago Cubs | Chicago Cubs released RHP Braden Looper. |
| Mar 25, 2011 | Released | John Bale | — | Detroit Tigers | Detroit Tigers released LHP John Bale. |
| Mar 25, 2011 | Released | Rod Scurry | — | San Diego Padres | San Diego Padres released RHP Rod Scurry. |
| Mar 25, 2011 | Signed as free agent | Oliver Pérez | — | Washington Nationals | Washington Nationals signed free agent LHP Oliver Perez to a minor league contract. |
| Mar 24, 2011 | Signed as free agent | Fernando Nieve | — | Houston Astros | Houston Astros signed free agent RHP Fernando Nieve to a minor league contract. |
| Mar 24, 2011 | Signed as free agent | Jesse English | — | Cleveland Guardians | Cleveland Indians signed free agent LHP Jesse English to a minor league contract. |
| Mar 23, 2011 | Signed as free agent | Luis Castillo | — | Philadelphia Phillies | Philadelphia Phillies signed free agent 2B Luis Castillo to a minor league contract and invited him to spring training. |
| Mar 23, 2011 | Released | Scott Rice | — | Chicago Cubs | Chicago Cubs released LHP Scott Rice. |
| Mar 23, 2011 | Signed as free agent | Bryan Mejia | — | Washington Nationals | Washington Nationals signed free agent 2B Bryan Mejia to a minor league contract. |
| Mar 22, 2011 | Released | Fernando Nieve | — | Pittsburgh Pirates | Pittsburgh Pirates released RHP Fernando Nieve. |
| Mar 22, 2011 | Released | John Raynor | — | Miami Marlins | Florida Marlins released LF John Raynor. |
| Mar 22, 2011 | Signed as free agent | Paul Krebs | — | Kansas City Royals | Kansas City Royals signed free agent C Paul Krebs to a minor league contract. |
| Mar 22, 2011 | Signed as free agent | Jose Luis Javier | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent SS Jose Luis Javier to a minor league contract. |
| Mar 22, 2011 | Signed as free agent | Juan Tejada | — | Toronto Blue Jays | Toronto Blue Jays signed free agent OF Juan Tejada to a minor league contract. |
| Mar 21, 2011 | Released | Oliver Pérez | — | New York Mets | New York Mets released LHP Oliver Perez. |
| Mar 21, 2011 | Released | Garrett Atkins | — | Pittsburgh Pirates | Pittsburgh Pirates released 1B Garrett Atkins. |
| Mar 21, 2011 | Signed as free agent | Eli Boike | — | Toronto Blue Jays | Toronto Blue Jays signed free agent OF Eli Boike to a minor league contract. |
| Mar 20, 2011 | Signed as free agent | Gabe Ortiz | — | Athletics | Oakland Athletics signed free agent C Gabriel Ortiz to a minor league contract. |
| Mar 20, 2011 | Signed | Jin-Young Kim | — | Chicago Cubs | Chicago Cubs signed RHP Jin-Young Kim. |
| Mar 19, 2011 | Signed as free agent | Brahiam Maldonado | — | New York Mets | New York Mets signed free agent LF Brahiam Maldonado to a minor league contract. |
| Mar 19, 2011 | Released | Kevin Barker | — | Washington Nationals | Washington Nationals released 1B Kevin Barker. |
| Mar 18, 2011 | Released | Luis Castillo | — | New York Mets | New York Mets released 2B Luis Castillo. |
| Mar 18, 2011 | Signed as free agent | Jose Cardona | — | Texas Rangers | Texas Rangers signed free agent OF Jose Gonzalez to a minor league contract. |
| Mar 17, 2011 | Signed | Yem Prades | — | Kansas City Royals | Kansas City Royals signed OF Yem Prades. |
| Mar 16, 2011 | Released | Chris Lubanski | — | Miami Marlins | Florida Marlins released LF Chris Lubanski. |
| Mar 16, 2011 | Signed | Jared Dyer | — | Kansas City Royals | Kansas City Royals signed C Jared Dyer. |
| Mar 15, 2011 | Released | Ian Snell | — | St. Louis Cardinals | St. Louis Cardinals released RHP Ian Snell. |
| Mar 15, 2011 | Signed as free agent | Ramón Ortiz | — | Chicago Cubs | Chicago Cubs signed free agent RHP Ramon Ortiz to a minor league contract. |
| Mar 15, 2011 | Signed | Harold Castro | — | Detroit Tigers | Detroit Tigers signed 2B Harold Castro. |
| Mar 15, 2011 | Signed | David Gonzalez | — | Detroit Tigers | Detroit Tigers signed SS David Gonzalez. |
| Mar 15, 2011 | Signed | Carlos Perez | — | Detroit Tigers | Detroit Tigers signed OF Carlos Perez. |
| Mar 15, 2011 | Signed | Anderson Yance | — | Detroit Tigers | Detroit Tigers signed OF Anderson Yance. |
| Mar 15, 2011 | Signed as free agent | Carlos Diaz | — | San Francisco Giants | San Francisco Giants signed free agent LHP Carlos Diaz to a minor league contract. |
| Mar 14, 2011 | Signed as free agent | Adam Kudryk | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent LHP Adam Kudryk to a minor league contract. |
| Mar 12, 2011 | Released | Jason Bergmann | — | Boston Red Sox | Boston Red Sox released RHP Jason Bergmann. |
| Mar 12, 2011 | Signed as free agent | Gerardo Ramirez | — | Minnesota Twins | Minnesota Twins signed free agent RHP Gerardo Ramirez to a minor league contract. |
| Mar 12, 2011 | Signed as free agent | Gonzalo Sanudo | — | Minnesota Twins | Minnesota Twins signed free agent RHP Gonzalo Sanudo to a minor league contract. |
| Mar 12, 2011 | Released | Christopher Rollins | — | San Diego Padres | San Diego Padres released RHP Christopher Rollins. |
| Mar 11, 2011 | Released | Robb Quinlan | — | Philadelphia Phillies | Philadelphia Phillies released 1B Robb Quinlan. |
| Mar 11, 2011 | Released | Cla Meredith | — | Washington Nationals | Washington Nationals released RHP Cla Meredith. |
| Mar 11, 2011 | Released | Chad Moeller | — | Colorado Rockies | Colorado Rockies released C Chad Moeller. |
| Mar 11, 2011 | Signed as free agent | Brennan May | — | Cincinnati Reds | Cincinnati Reds signed free agent CF Brennan May to a minor league contract. |
| Mar 11, 2011 | Signed as free agent | Yoel Espinal | — | Detroit Tigers | Detroit Tigers signed free agent RHP Yoel Espinal to a minor league contract. |
| Mar 9, 2011 | Signed as free agent | Seong-min Kim | — | Athletics | Oakland Athletics signed free agent C Seongmin Kim to a minor league contract. |
| Mar 7, 2011 | Released | Gregg Zaun | — | San Diego Padres | San Diego Padres released C Gregg Zaun. |
| Mar 7, 2011 | Signed as free agent | Nick Johnson | — | Cleveland Guardians | Cleveland Indians signed free agent 1B Nick Johnson to a minor league contract and invited him to spring training. |
| Mar 7, 2011 | Signed as free agent | Kyle Wilson | — | San Francisco Giants | San Francisco Giants signed free agent 3B Kyle Wilson to a minor league contract. |
| Mar 7, 2011 | Signed as free agent | Jorge Contreras | — | Toronto Blue Jays | Toronto Blue Jays signed free agent RHP Jorge Contreras to a minor league contract. |
| Mar 6, 2011 | Signed as free agent | Manny Martinez | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Manny Martinez to a minor league contract. |
| Mar 6, 2011 | Signed as free agent | Keivi Rojas | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Keivi Rojas to a minor league contract. |
| Mar 4, 2011 | Signed | James Paxton | — | Seattle Mariners | Seattle Mariners signed LHP James Paxton. |
| Mar 4, 2011 | Signed as free agent | Yonathan Mendoza | — | Cleveland Guardians | Cleveland Indians signed free agent 3B Yonathan Mendoza to a minor league contract. |
| Mar 3, 2011 | Signed as free agent | Werleen Taveras | — | Cincinnati Reds | Cincinnati Reds signed free agent RHP Werleen Taveras to a minor league contract. |
| Mar 3, 2011 | Signed as free agent | Yerinson Tatis | — | Kansas City Royals | Kansas City Royals signed free agent RHP Yerinson Tatis to a minor league contract. |
| Mar 3, 2011 | Signed as free agent | Yermín Mercedes | — | Washington Nationals | Washington Nationals signed free agent C Yermin Mercedes to a minor league contract. |
| Mar 2, 2011 | Signed as free agent | Brian Gordon | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Brian Gordon to a minor league contract. |
| Mar 2, 2011 | Signed as free agent | Nick Bierbrodt | — | Baltimore Orioles | Baltimore Orioles signed free agent LHP Nick Bierbrodt to a minor league contract. |
| Mar 2, 2011 | Trade | Aaron Laffey | Cleveland Guardians | Seattle Mariners | Cleveland Indians Traded LHP Aaron Laffey to Seattle Mariners and Jackson Generals Traded 2B Matt Lawson to Akron Aeros. |
| Mar 2, 2011 | Signed | Jesus Arredondo | — | Los Angeles Dodgers | Los Angeles Dodgers signed SS Jesus Arredondo. |
| Mar 1, 2011 | Signed as free agent | Chad Durbin | — | Cleveland Guardians | Cleveland Indians signed free agent RHP Chad Durbin. |
| Mar 1, 2011 | Signed as free agent | Brett Tomko | — | Texas Rangers | Texas Rangers signed free agent RHP Brett Tomko to a minor league contract and invited him to spring training. |
| Mar 1, 2011 | Signed as free agent | Elizardo Ramirez | — | Texas Rangers | Texas Rangers signed free agent RHP Elizardo Ramirez to a minor league contract. |
| Mar 1, 2011 | Signed as free agent | Wes Alsup | — | Atlanta Braves | Atlanta Braves signed free agent RHP Wes Alsup to a minor league contract. |
| Mar 1, 2011 | Signed as free agent | Willie Collazo | — | Toronto Blue Jays | Toronto Blue Jays signed free agent LHP Willie Collazo to a minor league contract. |
| Mar 1, 2011 | Signed as free agent | Horacio Ramirez | — | Los Angeles Angels | Los Angeles Angels signed free agent LHP Horacio Ramirez to a minor league contract. |
| Mar 1, 2011 | Signed as free agent | Luis Guzman | — | Tampa Bay Rays | Tampa Bay Rays signed free agent RHP Luis Guzman to a minor league contract. |
| Mar 1, 2011 | Signed as free agent | Luis De La Torre | — | Texas Rangers | Texas Rangers signed free agent LHP Luis De La Torre to a minor league contract. |
| Feb 28, 2011 | Signed | Andres Gonzalez | — | Tampa Bay Rays | Tampa Bay Rays signed RHP Andres Gonzalez. |
| Feb 28, 2011 | Signed as free agent | Luis Hernandez | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Pedro Barrera to a minor league contract. |
| Feb 27, 2011 | Released | Jody Gerut | — | Seattle Mariners | Seattle Mariners released CF Jody Gerut. |
| Feb 27, 2011 | Signed as free agent | Randy Flores | — | San Diego Padres | San Diego Padres signed free agent LHP Randy Flores to a minor league contract and invited him to spring training. |
| Feb 26, 2011 | Signed | Jeff Suppan | — | San Francisco Giants | San Francisco Giants signed RHP Jeff Suppan. |
| Feb 26, 2011 | Signed | Marc Kroon | — | San Francisco Giants | San Francisco Giants signed RHP Marc Kroon. |
| Feb 26, 2011 | Signed | Jason Grilli | — | Philadelphia Phillies | Philadelphia Phillies signed RHP Jason Grilli. |
| Feb 26, 2011 | Signed | Orlando Mercado | — | Los Angeles Dodgers | Los Angeles Dodgers signed C Orlando Mercado. |
| Feb 26, 2011 | Signed | Jorge Padron | — | Boston Red Sox | Boston Red Sox signed 1B Jorge Padron. |
| Feb 25, 2011 | Signed as free agent | Nerfy Nunez | — | Texas Rangers | Texas Rangers signed free agent LHP Nerfy Nunez to a minor league contract. |
| Feb 24, 2011 | Signed as free agent | Anderson Martinez | — | Washington Nationals | Washington Nationals signed free agent RHP Anderson Martinez to a minor league contract. |
| Feb 24, 2011 | Signed as free agent | Gilberto Mendez | — | Washington Nationals | Washington Nationals signed free agent RHP Gilberto Mendez to a minor league contract. |
| Feb 24, 2011 | Signed as free agent | Wilman Rodriguez | — | Washington Nationals | Washington Nationals signed free agent OF Wilman Rodriguez to a minor league contract. |
| Feb 23, 2011 | Signed as free agent | Dustin Pease | — | San Diego Padres | San Diego Padres signed free agent LHP Dustin Pease to a minor league contract. |
| Feb 23, 2011 | Signed as free agent | Nick Ebert | — | New York Yankees | New York Yankees signed free agent 1B Nick Ebert to a minor league contract. |
| Feb 22, 2011 | Signed as free agent | Keith Castillo | — | Tampa Bay Rays | Tampa Bay Rays signed free agent C Keith Castillo to a minor league contract. |
| Feb 21, 2011 | Signed as free agent | Felix Jorge | — | Minnesota Twins | Minnesota Twins signed free agent RHP Felix Jorge to a minor league contract. |
| Feb 21, 2011 | Signed as free agent | Liberio Bohorquez | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Liberio Bohorquez to a minor league contract. |
| Feb 21, 2011 | Signed as free agent | Anderson Polanco | — | Cleveland Guardians | Cleveland Indians signed free agent LHP Anderson Polanco to a minor league contract. |
| Feb 20, 2011 | Signed as free agent | Jésus Feliciano | — | New York Mets | New York Mets signed free agent OF Jesus Feliciano to a minor league contract. |
| Feb 19, 2011 | Signed as free agent | Chris Shelton | — | New York Mets | New York Mets signed free agent IF Chris Shelton to a minor league contract. |
| Feb 19, 2011 | Signed as free agent | Kent Tsujimoto | — | New York Mets | New York Mets signed free agent RHP Kent Tsujimoto to a minor league contract. |
| Feb 19, 2011 | Signed as free agent | Markus Solbach | — | Minnesota Twins | Minnesota Twins signed free agent RHP Markus Solbach to a minor league contract. |
| Feb 19, 2011 | Signed as free agent | Angelo Mora | — | Philadelphia Phillies | Philadelphia Phillies signed free agent SS Angelo Mora to a minor league contract. |
| Feb 18, 2011 | Signed as free agent | Vladimir Guerrero | — | Baltimore Orioles | Baltimore Orioles signed free agent DH Vladimir Guerrero. |
| Feb 18, 2011 | Signed as free agent | Joe Inglett | — | Tampa Bay Rays | Tampa Bay Rays signed free agent Joe Inglett. |
| Feb 17, 2011 | Signed as free agent | Russell Branyan | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent 1B Russell Branyan to a minor league contract and invited him to spring training. |
| Feb 17, 2011 | Released | Jamie D'Antona | — | Miami Marlins | Florida Marlins released 3B Jamie D'Antona. |
| Feb 17, 2011 | Signed as free agent | John Maine | — | Colorado Rockies | Colorado Rockies signed free agent RHP John Maine to a minor league contract and invited him to spring training. |
| Feb 17, 2011 | Signed as free agent | Luis Amaro | — | Philadelphia Phillies | Philadelphia Phillies signed free agent OF Luis Amaro to a minor league contract. |
| Feb 16, 2011 | Signed as free agent | Chris Bootcheck | — | Tampa Bay Rays | Tampa Bay Rays signed free agent RHP Chris Bootcheck to a minor league contract and invited him to spring training. |
| Feb 16, 2011 | Signed as free agent | Ricky Orta | — | Tampa Bay Rays | Tampa Bay Rays signed free agent RHP Ricky Orta to a minor league contract and invited him to spring training. |
| Feb 16, 2011 | Signed as free agent | Jason Isringhausen | — | New York Mets | New York Mets signed free agent RHP Jason Isringhausen to a minor league contract and invited him to spring training. |
| Feb 16, 2011 | Signed as free agent | Lance Cormier | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent RHP Lance Cormier to a minor league contract and invited him to spring training. |
| Feb 16, 2011 | Signed as free agent | Orlando Cabrera | — | Cleveland Guardians | Cleveland Indians signed free agent 2B Orlando Cabrera. |
| Feb 16, 2011 | Released | Neal Cotts | — | New York Yankees | New York Yankees released LHP Neal Cotts. |
| Feb 16, 2011 | Signed as free agent | Scott Podsednik | — | Toronto Blue Jays | Toronto Blue Jays signed free agent LF Scott Podsednik to a minor league contract and invited him to spring training. |
| Feb 16, 2011 | Signed as free agent | Jorgan Cavanerio | — | Miami Marlins | Florida Marlins signed free agent RHP Jorgan Cavanerio to a minor league contract. |
| Feb 15, 2011 | Trade | Robert Coello | Boston Red Sox | Chicago Cubs | Boston Red Sox Traded RHP Robert Coello to Chicago Cubs and Tennessee Smokies Traded 2B Tony Thomas to Portland Sea Dogs. |
| Feb 15, 2011 | Signed as free agent | Cristian Murillo | — | Houston Astros | Houston Astros signed free agent OF Cristian Murillo to a minor league contract. |
| Feb 14, 2011 | Signed as free agent | Andruw Jones | — | New York Yankees | New York Yankees signed free agent RF Andruw Jones. |
| Feb 14, 2011 | Signed as free agent | Rafael Valdes | — | Chicago Cubs | Chicago Cubs signed free agent SS Rafael Valdes to a minor league contract. |
| Feb 14, 2011 | Signed as free agent | Andrew Russell | — | Atlanta Braves | Atlanta Braves signed free agent RHP Andrew Russell to a minor league contract. |
| Feb 14, 2011 | Signed as free agent | Matt Kramer | — | Boston Red Sox | Boston Red Sox signed free agent C Matt Kramer to a minor league contract. |
| Feb 14, 2011 | Signed as free agent | Gianfranco Wawoe | — | Seattle Mariners | Seattle Mariners signed free agent 3B Gianfranco Wawoe to a minor league contract. |
| Feb 11, 2011 | Signed as free agent | Luis Ayala | — | New York Yankees | New York Yankees signed free agent RHP Luis Ayala to a minor league contract and invited him to spring training. |
| Feb 11, 2011 | Signed as free agent | Eric Chavez | — | New York Yankees | New York Yankees signed free agent 3B Eric Chavez to a minor league contract and invited him to spring training. |
| Feb 11, 2011 | Signed as free agent | Juan Rincon | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent RHP Juan Rincon to a minor league contract. |
| Feb 11, 2011 | Signed as free agent | Deuris Lara | — | San Diego Padres | San Diego Padres signed free agent C Deuris Lara to a minor league contract. |
| Feb 10, 2011 | Signed as free agent | Manny Delcarmen | — | Seattle Mariners | Seattle Mariners signed free agent RHP Manny Delcarmen to a minor league contract and invited him to spring training. |
| Feb 10, 2011 | Signed as free agent | Miguel Montero | — | Detroit Tigers | Detroit Tigers signed free agent RHP Miguel Montero to a minor league contract. |
| Feb 9, 2011 | Signed as free agent | Alfredo Aceves | — | Boston Red Sox | Boston Red Sox signed free agent Alfredo Aceves. |
| Feb 9, 2011 | Signed as free agent | Dennys Reyes | — | Boston Red Sox | Boston Red Sox signed free agent LHP Dennys Reyes to a minor league contract and invited him to spring training. |
| Feb 9, 2011 | Released | Gregorio Petit | — | San Diego Padres | San Diego Padres released SS Gregorio Petit. |
| Feb 9, 2011 | Signed as free agent | Jose Heredia | — | Cincinnati Reds | Cincinnati Reds signed free agent LHP Jose Heredia to a minor league contract. |
| Feb 8, 2011 | Signed as free agent | Claudio Vargas | — | Colorado Rockies | Colorado Rockies signed free agent RHP Claudio Vargas to a minor league contract and invited him to spring training. |
| Feb 8, 2011 | Signed | Simon Mercedes | — | San Francisco Giants | San Francisco Giants signed RHP Simon Mercedes. |
| Feb 8, 2011 | Signed | Jose Agusto Diaz | — | Los Angeles Dodgers | Los Angeles Dodgers signed RHP Jose Agusto Diaz. |
| Feb 7, 2011 | Signed as free agent | Oscar Salazar | — | San Diego Padres | San Diego Padres signed free agent 2B Oscar Salazar to a minor league contract and invited him to spring training. |
| Feb 7, 2011 | Signed as free agent | Orvin Tovar | — | Detroit Tigers | Detroit Tigers signed free agent OF Orvin Tovar to a minor league contract. |
| Feb 7, 2011 | Signed as free agent | Jhosua Montero | — | Detroit Tigers | Detroit Tigers signed free agent C Jhosua Montero to a minor league contract. |
| Feb 7, 2011 | Signed as free agent | Jose Ovalles | — | Detroit Tigers | Detroit Tigers signed free agent C Jose Ovalles to a minor league contract. |
| Feb 6, 2011 | Signed as free agent | Elvis Rubio | — | Milwaukee Brewers | Milwaukee Brewers signed free agent LF Elvis Rubio to a minor league contract. |
| Feb 5, 2011 | Signed as free agent | Erick Abreu | — | Houston Astros | Houston Astros signed free agent RHP Erick Abreu to a minor league contract. |
| Feb 4, 2011 | Signed as free agent | Mark Kotsay | — | Milwaukee Brewers | Milwaukee Brewers signed free agent RF Mark Kotsay. |
| Feb 4, 2011 | Signed as free agent | Justin Duchscherer | — | Baltimore Orioles | Baltimore Orioles signed free agent RHP Justin Duchscherer. |
| Feb 4, 2011 | Signed as free agent | Jim Edmonds | — | St. Louis Cardinals | St. Louis Cardinals signed free agent CF Jim Edmonds to a minor league contract and invited him to spring training. |
| Feb 4, 2011 | Signed as free agent | J.D. Martin | — | Washington Nationals | Washington Nationals signed free agent RHP J.D. Martin to a minor league contract and invited him to spring training. |
| Feb 4, 2011 | Signed as free agent | Kevin Barker | — | Washington Nationals | Washington Nationals signed free agent 1B Kevin Barker to a minor league contract and invited him to spring training. |
| Feb 4, 2011 | Signed as free agent | Gabe Gross | — | Seattle Mariners | Seattle Mariners signed free agent LF Gabe Gross to a minor league contract and invited him to spring training. |
| Feb 4, 2011 | Signed as free agent | George Araujo | — | St. Louis Cardinals | St. Louis Cardinals signed free agent OF George Araujo to a minor league contract. |
| Feb 4, 2011 | Signed as free agent | Henry Rodriguez | — | Miami Marlins | Florida Marlins signed free agent OF Henry Rodriguez to a minor league contract. |
| Feb 3, 2011 | Signed as free agent | Pedro Feliz | — | Kansas City Royals | Kansas City Royals signed free agent 3B Pedro Feliz to a minor league contract and invited him to spring training. |
| Feb 3, 2011 | Signed as free agent | Lastings Milledge | — | Chicago White Sox | Chicago White Sox signed free agent LF Lastings Milledge to a minor league contract and invited him to spring training. |
| Feb 3, 2011 | Signed as free agent | Laynce Nix | — | Washington Nationals | Washington Nationals signed free agent LF Laynce Nix to a minor league contract and invited him to spring training. |
| Feb 3, 2011 | Signed as free agent | Mark Hendrickson | — | Baltimore Orioles | Baltimore Orioles signed free agent LHP Mark Hendrickson to a minor league contract and invited him to spring training. |
| Feb 3, 2011 | Signed as free agent | Clay Rapada | — | Baltimore Orioles | Baltimore Orioles signed free agent LHP Clay Rapada to a minor league contract and invited him to spring training. |
| Feb 3, 2011 | Signed as free agent | Ryan Drese | — | Baltimore Orioles | Baltimore Orioles signed free agent RHP Ryan Drese to a minor league contract and invited him to spring training. |
| Feb 3, 2011 | Signed as free agent | Randy Winn | — | Baltimore Orioles | Baltimore Orioles signed free agent CF Randy Winn to a minor league contract and invited him to spring training. |
| Feb 3, 2011 | Signed as free agent | Nick Green | — | Baltimore Orioles | Baltimore Orioles signed free agent SS Nick Green to a minor league contract and invited him to spring training. |
| Feb 3, 2011 | Signed as free agent | Juan Cruz | — | Tampa Bay Rays | Tampa Bay Rays signed free agent RHP Juan Cruz to a minor league contract and invited him to spring training. |
| Feb 3, 2011 | Signed as free agent | Franklin Cariel | — | Miami Marlins | Florida Marlins signed free agent RHP Franklin Cariel to a minor league contract. |
| Feb 3, 2011 | Signed as free agent | Julio Pena | — | San Francisco Giants | San Francisco Giants signed free agent OF Julio Pena to a minor league contract. |
| Feb 3, 2011 | Signed | Wilfrdo Sosa | — | Athletics | Oakland Athletics signed 3B Wilfredo Sosa. |
| Feb 2, 2011 | Trade | Justin Maxwell | Washington Nationals | New York Yankees | Washington Nationals Traded CF Justin Maxwell to New York Yankees and Trenton Thunder Traded RHP Adam Olbrychowski to Harrisburg Senators. |
| Feb 2, 2011 | Signed as free agent | Yohan Flande | — | Atlanta Braves | Atlanta Braves signed free agent LHP Yohan Flande to a minor league contract and invited him to spring training. |
| Feb 2, 2011 | Signed as free agent | Felipe López | — | Tampa Bay Rays | Tampa Bay Rays signed free agent 2B Felipe Lopez to a minor league contract and invited him to spring training. |
| Feb 2, 2011 | Signed as free agent | Cla Meredith | — | Washington Nationals | Washington Nationals signed free agent RHP Cla Meredith to a minor league contract and invited him to spring training. |
| Feb 2, 2011 | Signed as free agent | Alex Cora | — | Washington Nationals | Washington Nationals signed free agent SS Alex Cora to a minor league contract and invited him to spring training. |
| Feb 2, 2011 | Signed as free agent | Jose Ovalles | — | Detroit Tigers | Detroit Tigers signed free agent Jose Ovalles. |
| Feb 1, 2011 | Signed as free agent | Dave Convertini | — | Atlanta Braves | Atlanta Braves signed free agent C Dave Convertini to a minor league contract. |
| Feb 1, 2011 | Signed as free agent | Ernesto Verrier | — | Atlanta Braves | Atlanta Braves signed free agent RHP Ernesto Verrier to a minor league contract. |
| Jan 31, 2011 | Signed as free agent | Rodrigo Lopez | — | Atlanta Braves | Atlanta Braves signed free agent RHP Rodrigo Lopez to a minor league contract and invited him to spring training. |
| Jan 31, 2011 | Signed as free agent | Jamey Wright | — | Seattle Mariners | Seattle Mariners signed free agent RHP Jamey Wright to a minor league contract and invited him to spring training. |
| Jan 31, 2011 | Signed as free agent | Greg Dobbs | — | Miami Marlins | Florida Marlins signed free agent 3B Greg Dobbs to a minor league contract and invited him to spring training. |
| Jan 31, 2011 | Signed as free agent | Johnny Damon | — | Tampa Bay Rays | Tampa Bay Rays signed free agent LF Johnny Damon. |
| Jan 31, 2011 | Signed as free agent | Manny Ramirez | — | Tampa Bay Rays | Tampa Bay Rays signed free agent DH Manny Ramirez. |
| Jan 31, 2011 | Signed as free agent | Marcos Cuesto | — | Atlanta Braves | Atlanta Braves signed free agent RHP Marcos Cuesto to a minor league contract. |
| Jan 30, 2011 | Signed as free agent | Dave Bush | — | Texas Rangers | Texas Rangers signed free agent RHP Dave Bush to a minor league contract and invited him to spring training. |
| Jan 30, 2011 | Signed as free agent | Beau Te Wera Bishop | — | Boston Red Sox | Boston Red Sox signed free agent C Beau Bishop to a minor league contract. |
| Jan 29, 2011 | Signed as free agent | Jose Ruiz | — | Texas Rangers | Texas Rangers signed free agent 1B Jose Ruiz to a minor league contract and invited him to spring training. |
| Jan 29, 2011 | Signed | Herlis Rodriguez | — | Philadelphia Phillies | Philadelphia Phillies signed OF Herlis Rodriguez. |
| Jan 28, 2011 | Signed as free agent | Chad Reineke | — | Cincinnati Reds | Cincinnati Reds signed free agent RHP Chad Reineke to a minor league contract and invited him to spring training. |
| Jan 28, 2011 | Signed as free agent | Joe Beimel | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent LHP Joe Beimel to a minor league contract and invited him to spring training. |
| Jan 28, 2011 | Signed as free agent | Eric Junge | — | Los Angeles Angels | Los Angeles Angels signed free agent RHP Eric Junge to a minor league contract and invited him to spring training. |
| Jan 28, 2011 | Signed as free agent | Kevin Melillo | — | Los Angeles Angels | Los Angeles Angels signed free agent 1B Kevin Melillo to a minor league contract and invited him to spring training. |
| Jan 28, 2011 | Signed as free agent | Gil Velazquez | — | Los Angeles Angels | Los Angeles Angels signed free agent SS Gil Velazquez to a minor league contract and invited him to spring training. |
| Jan 28, 2011 | Signed as free agent | Casey Kotchman | — | Tampa Bay Rays | Tampa Bay Rays signed free agent 1B Casey Kotchman to a minor league contract and invited him to spring training. |
| Jan 27, 2011 | Signed as free agent | Braden Looper | — | Chicago Cubs | Chicago Cubs signed free agent RHP Braden Looper to a minor league contract and invited him to spring training. |
| Jan 27, 2011 | Signed as free agent | Augie Ojeda | — | Chicago Cubs | Chicago Cubs signed free agent 2B Augie Ojeda to a minor league contract and invited him to spring training. |
| Jan 27, 2011 | Signed as free agent | Todd Wellemeyer | — | Chicago Cubs | Chicago Cubs signed free agent RHP Todd Wellemeyer to a minor league contract and invited him to spring training. |
| Jan 27, 2011 | Signed as free agent | Tim Mahler | — | Toronto Blue Jays | Toronto Blue Jays signed free agent C Tim Mahler to a minor league contract. |
| Jan 27, 2011 | Signed as free agent | Eurys Felipe | — | Detroit Tigers | Detroit Tigers signed free agent SS Eurys Felipe to a minor league contract. |
| Jan 27, 2011 | Signed as free agent | Lenny Pena | — | Detroit Tigers | Detroit Tigers signed free agent OF Lenny Pena to a minor league contract. |
| Jan 27, 2011 | Signed as free agent | Johanny Sierra | — | New York Mets | New York Mets signed free agent OF Johanny Sierra to a minor league contract. |
| Jan 26, 2011 | Signed as free agent | Roman Colon | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent RHP Roman Colon to a minor league contract and invited him to spring training. |
| Jan 26, 2011 | Signed as free agent | Damaso Espino | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent C Damaso Espino to a minor league contract and invited him to spring training. |
| Jan 26, 2011 | Signed as free agent | Oscar Villarreal | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent RHP Oscar Villarreal to a minor league contract and invited him to spring training. |
| Jan 26, 2011 | Signed as free agent | Gabe Kapler | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent RF Gabe Kapler to a minor league contract and invited him to spring training. |
| Jan 26, 2011 | Signed as free agent | Alfredo Amezaga | — | Colorado Rockies | Colorado Rockies signed free agent SS Alfredo Amezaga to a minor league contract and invited him to spring training. |
| Jan 26, 2011 | Signed as free agent | Jorge Cantu | — | San Diego Padres | San Diego Padres signed free agent 1B Jorge Cantu. |
| Jan 26, 2011 | Signed as free agent | Greg Burke | — | San Diego Padres | San Diego Padres signed free agent RHP Greg Burke to a minor league contract and invited him to spring training. |
| Jan 26, 2011 | Signed as free agent | Ben Petralli | — | Colorado Rockies | Colorado Rockies signed free agent C Ben Petralli to a minor league contract. |
| Jan 25, 2011 | Signed as free agent | Blaine Boyer | — | New York Mets | New York Mets signed free agent RHP Blaine Boyer to a minor league contract and invited him to spring training. |
| Jan 25, 2011 | Signed as free agent | Tim Byrdak | — | New York Mets | New York Mets signed free agent LHP Tim Byrdak to a minor league contract and invited him to spring training. |
| Jan 25, 2011 | Signed as free agent | Raúl Chávez | — | New York Mets | New York Mets signed free agent C Raul Chavez to a minor league contract and invited him to spring training. |
| Jan 25, 2011 | Signed as free agent | Dusty Ryan | — | New York Mets | New York Mets signed free agent C Dusty Ryan to a minor league contract and invited him to spring training. |
| Jan 25, 2011 | Trade | Mike Napoli | Toronto Blue Jays | Texas Rangers | Toronto Blue Jays traded C Mike Napoli to Texas Rangers for cash and RHP Frank Francisco. |
| Jan 25, 2011 | Signed as free agent | Chris Ray | — | Seattle Mariners | Seattle Mariners signed free agent RHP Chris Ray to a minor league contract and invited him to spring training. |
| Jan 24, 2011 | Trade | Armando Galarraga | Detroit Tigers | Arizona Diamondbacks | Detroit Tigers Traded RHP Armando Galarraga to Arizona Diamondbacks; Yakima Bears Traded RHP Kevin Eichhorn to Connecticut Tigers and Visalia Rawhide Traded LHP Ryan Robowski to Lakeland Flying Tigers. |
| Jan 24, 2011 | Signed as free agent | Micah Owings | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Micah Owings to a minor league contract and invited him to spring training. |
| Jan 24, 2011 | Signed as free agent | Todd Coffey | — | Washington Nationals | Washington Nationals signed free agent RHP Todd Coffey. |
| Jan 24, 2011 | Signed as free agent | J.C. Thompson | — | Houston Astros | Houston Astros signed free agent 2B J.C. Thompson to a minor league contract and invited him to spring training. |
| Jan 24, 2011 | Signed as free agent | Andy LaRoche | — | Athletics | Oakland Athletics signed free agent 3B Andy LaRoche to a minor league contract and invited him to spring training. |
| Jan 24, 2011 | Trade | Clayton Mortensen | Athletics | Colorado Rockies | Oakland Athletics Traded RHP Clayton Mortensen to Colorado Rockies and Modesto Nuts Traded RHP Ethan Hollingsworth to Stockton Ports. |
| Jan 24, 2011 | Signed as free agent | Willy Taveras | — | Colorado Rockies | Colorado Rockies signed free agent CF Willy Taveras to a minor league contract and invited him to spring training. |
| Jan 24, 2011 | Signed as free agent | Raudy Read | — | Washington Nationals | Washington Nationals signed free agent C Raudy Read to a minor league contract. |
| Jan 24, 2011 | Signed as free agent | Randy Encarnacion | — | Washington Nationals | Washington Nationals signed free agent OF Randy Encarnacion to a minor league contract. |
| Jan 24, 2011 | Signed as free agent | Cruz Cedeno | — | Detroit Tigers | Detroit Tigers signed free agent RHP Cruz Cedeno to a minor league contract. |
| Jan 24, 2011 | Signed as free agent | Arturo Pena | — | San Diego Padres | San Diego Padres signed free agent RHP Arturo Pena to a minor league contract. |
| Jan 24, 2011 | Signed as free agent | Yojhan Quevedo | — | Seattle Mariners | Seattle Mariners signed free agent C Johan Quevedo to a minor league contract. |
| Jan 24, 2011 | Signed as free agent | Angel Vasquez | — | Detroit Tigers | Detroit Tigers signed free agent RHP Angel Vasquez to a minor league contract. |
| Jan 23, 2011 | Signed as free agent | Noel Diaz | — | San Francisco Giants | San Francisco Giants signed free agent RHP Noel Diaz to a minor league contract. |
| Jan 21, 2011 | Signed as free agent | Dirk Hayhurst | — | Tampa Bay Rays | Tampa Bay Rays signed free agent RHP Dirk Hayhurst to a minor league contract and invited him to spring training. |
| Jan 21, 2011 | Signed as free agent | Daniel Mayora | — | Tampa Bay Rays | Tampa Bay Rays signed free agent 2B Daniel Mayora to a minor league contract and invited him to spring training. |
| Jan 21, 2011 | Signed as free agent | Nick Punto | — | St. Louis Cardinals | St. Louis Cardinals signed free agent 3B Nick Punto. |
| Jan 21, 2011 | Signed as free agent | Jeremy Reed | — | Milwaukee Brewers | Milwaukee Brewers signed free agent LF Jeremy Reed to a minor league contract and invited him to spring training. |
| Jan 21, 2011 | Trade | Vernon Wells | Toronto Blue Jays | Los Angeles Angels | Toronto Blue Jays traded CF Vernon Wells to Los Angeles Angels for C Mike Napoli and LF Juan Rivera. |
| Jan 21, 2011 | Signed as free agent | Leonel Bastidas | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Leonel Bastidas to a minor league contract. |
| Jan 20, 2011 | Signed as free agent | Chris Young | — | New York Mets | New York Mets signed free agent RHP Chris Young. |
| Jan 20, 2011 | Signed as free agent | Scott Hairston | — | New York Mets | New York Mets signed free agent RF Scott Hairston. |
| Jan 20, 2011 | Signed as free agent | Jody Gerut | — | Seattle Mariners | Seattle Mariners signed free agent CF Jody Gerut to a minor league contract and invited him to spring training. |
| Jan 20, 2011 | Signed as free agent | Nate Robertson | — | Seattle Mariners | Seattle Mariners signed free agent LHP Nate Robertson to a minor league contract and invited him to spring training. |
| Jan 20, 2011 | Signed as free agent | Andy Wells | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Andy Wells to a minor league contract. |
| Jan 19, 2011 | Signed as free agent | Brian Fuentes | — | Athletics | Oakland Athletics signed free agent LHP Brian Fuentes. |
| Jan 19, 2011 | Trade | Tom Gorzelanny | Chicago Cubs | Washington Nationals | Chicago Cubs Traded LHP Tom Gorzelanny to Washington Nationals; Harrisburg Senators Traded RF Michael Burgess to Tennessee Smokies; Hagerstown Suns Traded LHP Graham Hicks to Peoria Chiefs and Potomac Nationals Traded RHP A.J. Morris to Daytona Cubs. |
| Jan 19, 2011 | Released | J.D. Martin | — | Washington Nationals | Washington Nationals released RHP J.D. Martin. |
| Jan 19, 2011 | Signed as free agent | Jerry Hairston Jr. | — | Washington Nationals | Washington Nationals signed free agent SS Jerry Hairston. |
| Jan 19, 2011 | Signed as free agent | Dallas McPherson | — | Chicago White Sox | Chicago White Sox signed free agent 3B Dallas McPherson to a minor league contract and invited him to spring training. |
| Jan 19, 2011 | Signed as free agent | Jared Price | — | Chicago White Sox | Chicago White Sox signed free agent C Jared Price to a minor league contract and invited him to spring training. |
| Jan 19, 2011 | Signed as free agent | Mike Hampton | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent LHP Mike Hampton to a minor league contract and invited him to spring training. |
| Jan 19, 2011 | Signed as free agent | Wily Mo Peña | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent LF Wily Mo Pena to a minor league contract and invited him to spring training. |
| Jan 19, 2011 | Signed as free agent | Cody Ransom | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent 3B Cody Ransom to a minor league contract and invited him to spring training. |
| Jan 19, 2011 | Signed as free agent | David Winfree | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RF David Winfree to a minor league contract and invited him to spring training. |
| Jan 19, 2011 | Signed as free agent | Chad Qualls | — | San Diego Padres | San Diego Padres signed free agent RHP Chad Qualls. |
| Jan 19, 2011 | Signed as free agent | Gregg Zaun | — | San Diego Padres | San Diego Padres signed free agent C Gregg Zaun to a minor league contract and invited him to spring training. |
| Jan 19, 2011 | Signed as free agent | Carl Pavano | — | Minnesota Twins | Minnesota Twins signed free agent RHP Carl Pavano. |
| Jan 19, 2011 | Signed as free agent | Joe Crede | — | Colorado Rockies | Colorado Rockies signed free agent Joe Crede. |
| Jan 18, 2011 | Released | Gil Meche | — | Kansas City Royals | Kansas City Royals released RHP Gil Meche. |
| Jan 18, 2011 | Signed as free agent | Grant Balfour | — | Athletics | Oakland Athletics signed free agent Grant Balfour. |
| Jan 18, 2011 | Signed as free agent | Brad Penny | — | Detroit Tigers | Detroit Tigers signed free agent RHP Brad Penny. |
| Jan 18, 2011 | Signed as free agent | Jose Veras | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent Jose Veras. |
| Jan 18, 2011 | Signed as free agent | Wyatt Toregas | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent C Wyatt Toregas to a minor league contract and invited him to spring training. |
| Jan 18, 2011 | Signed as free agent | Rafael Soriano | — | New York Yankees | New York Yankees signed free agent RHP Rafael Soriano. |
| Jan 18, 2011 | Signed as free agent | Aaron Heilman | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Aaron Heilman. |
| Jan 18, 2011 | Signed as free agent | Willie Bloomquist | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RF Willie Bloomquist. |
| Jan 18, 2011 | Signed as free agent | Marcus Thames | — | Los Angeles Dodgers | Los Angeles Dodgers signed free agent LF Marcus Thames. |
| Jan 18, 2011 | Signed as free agent | Samir Mendez | — | Los Angeles Angels | Los Angeles Angels signed free agent 1B Samir Mendez to a minor league contract. |
| Jan 18, 2011 | Signed as free agent | Keli'i Zablan | — | Seattle Mariners | Seattle Mariners signed free agent RHP Keli'i Zablan to a minor league contract. |
| Jan 18, 2011 | Signed as free agent | Aristides Aquino | — | Cincinnati Reds | Cincinnati Reds signed free agent RF Aristides Aquino to a minor league contract. |
| Jan 17, 2011 | Signed as free agent | Willie Harris | — | New York Mets | New York Mets signed free agent LF Willie Harris to a minor league contract and invited him to spring training. |
| Jan 17, 2011 | Signed as free agent | Jon Rauch | — | Toronto Blue Jays | Toronto Blue Jays signed free agent RHP Jon Rauch. |
| Jan 17, 2011 | Signed as free agent | Jason Giambi | — | Colorado Rockies | Colorado Rockies signed free agent 1B Jason Giambi to a minor league contract and invited him to spring training. |
| Jan 15, 2011 | Signed as free agent | Kyle Farnsworth | — | Tampa Bay Rays | Tampa Bay Rays signed free agent RHP Kyle Farnsworth. |
| Jan 15, 2011 | Signed as free agent | Bruce Chen | — | Kansas City Royals | Kansas City Royals signed free agent LHP Bruce Chen. |
| Jan 15, 2011 | Signed as free agent | Jameson Dunn | — | Milwaukee Brewers | Milwaukee Brewers signed free agent RHP Jameson Dunn to a minor league contract. |
| Jan 14, 2011 | Signed as free agent | Jeff Francis | — | Kansas City Royals | Kansas City Royals signed free agent LHP Jeff Francis. |
| Jan 14, 2011 | Signed as free agent | Jim Thome | — | Minnesota Twins | Minnesota Twins signed free agent DH Jim Thome. |
| Jan 14, 2011 | Signed as free agent | Matt Anderson | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Matt Anderson to a minor league contract. |
| Jan 14, 2011 | Signed as free agent | Miguel Batista | — | St. Louis Cardinals | St. Louis Cardinals signed free agent RHP Miguel Batista to a minor league contract and invited him to spring training. |
| Jan 14, 2011 | Signed as free agent | Ian Snell | — | St. Louis Cardinals | St. Louis Cardinals signed free agent RHP Ian Snell to a minor league contract and invited him to spring training. |
| Jan 14, 2011 | Released | Clay Rapada | — | Texas Rangers | Texas Rangers released LHP Clay Rapada. |
| Jan 14, 2011 | Signed as free agent | Shane Loux | — | San Francisco Giants | San Francisco Giants signed free agent RHP Shane Loux to a minor league contract and invited him to spring training. |
| Jan 14, 2011 | Signed as free agent | Guillermo Mota | — | San Francisco Giants | San Francisco Giants signed free agent RHP Guillermo Mota to a minor league contract and invited him to spring training. |
| Jan 14, 2011 | Signed as free agent | Ryan Vogelsong | — | San Francisco Giants | San Francisco Giants signed free agent RHP Ryan Vogelsong to a minor league contract and invited him to spring training. |
| Jan 14, 2011 | Signed as free agent | Brad Eldred | — | San Francisco Giants | San Francisco Giants signed free agent 1B Brad Eldred to a minor league contract and invited him to spring training. |
| Jan 14, 2011 | Signed as free agent | Terry Evans | — | San Francisco Giants | San Francisco Giants signed free agent RF Terry Evans to a minor league contract and invited him to spring training. |
| Jan 14, 2011 | Signed as free agent | Juan De Los Santos | — | Washington Nationals | Washington Nationals signed free agent OF Juan De Los Santos to a minor league contract. |
| Jan 13, 2011 | Signed as free agent | Clint Sammons | — | Miami Marlins | Florida Marlins signed free agent C Clint Sammons to a minor league contract and invited him to spring training. |
| Jan 13, 2011 | Signed as free agent | Jamie D'Antona | — | Miami Marlins | Florida Marlins signed free agent 3B Jamie D'Antona to a minor league contract and invited him to spring training. |
| Jan 13, 2011 | Signed as free agent | Joe Thurston | — | Miami Marlins | Florida Marlins signed free agent 2B Joe Thurston to a minor league contract and invited him to spring training. |
| Jan 13, 2011 | Signed as free agent | Kevin Gregg | — | Baltimore Orioles | Baltimore Orioles signed free agent RHP Kevin Gregg. |
| Jan 13, 2011 | Released | Matt Fox | — | Boston Red Sox | Boston Red Sox released RHP Matt Fox. |
| Jan 13, 2011 | Signed as free agent | Gabriel Guerrero | — | Seattle Mariners | Seattle Mariners signed free agent OF Gabby Guerrero to a minor league contract. |
| Jan 13, 2011 | Signed as free agent | José Rondon | — | Los Angeles Angels | Los Angeles Angels signed free agent Jose Rondon. |
| Jan 12, 2011 | Signed as free agent | Taylor Tankersley | — | New York Mets | New York Mets signed free agent LHP Taylor Tankersley to a minor league contract and invited him to spring training. |
| Jan 12, 2011 | Signed as free agent | Reed Johnson | — | Chicago Cubs | Chicago Cubs signed free agent LF Reed Johnson to a minor league contract and invited him to spring training. |
| Jan 12, 2011 | Signed as free agent | Jorge Tillero | — | Washington Nationals | Washington Nationals signed free agent C Jorge Tillero to a minor league contract. |
| Jan 11, 2011 | Signed as free agent | Steve Holm | — | Minnesota Twins | Minnesota Twins signed free agent C Steve Holm to a minor league contract and invited him to spring training. |
| Jan 11, 2011 | Signed as free agent | René Rivera | — | Minnesota Twins | Minnesota Twins signed free agent C Rene Rivera to a minor league contract and invited him to spring training. |
| Jan 11, 2011 | Signed as free agent | Jose Gomez | — | Texas Rangers | Texas Rangers signed free agent RHP Jose Gomez to a minor league contract. |
| Jan 10, 2011 | Signed as free agent | John Bale | — | Detroit Tigers | Detroit Tigers signed free agent LHP John Bale to a minor league contract and invited him to spring training. |
| Jan 10, 2011 | Signed as free agent | Enrique Gonzalez | — | Detroit Tigers | Detroit Tigers signed free agent RHP Enrique Gonzalez to a minor league contract and invited him to spring training. |
| Jan 10, 2011 | Signed as free agent | Chris Oxspring | — | Detroit Tigers | Detroit Tigers signed free agent RHP Chris Oxspring to a minor league contract and invited him to spring training. |
| Jan 10, 2011 | Signed as free agent | Omir Santos | — | Detroit Tigers | Detroit Tigers signed free agent C Omir Santos to a minor league contract and invited him to spring training. |
| Jan 10, 2011 | Trade | Albert Cartwright | Houston Astros | Philadelphia Phillies | Philadelphia Phillies traded LHP Sergio Escalona to Houston Astros for 2B Albert Cartwright. |
| Jan 10, 2011 | Signed as free agent | Hideki Okajima | — | Boston Red Sox | Boston Red Sox signed free agent Hideki Okajima. |
| Jan 10, 2011 | Signed as free agent | Will Ohman | — | Chicago White Sox | Chicago White Sox signed free agent LHP Will Ohman. |
| Jan 10, 2011 | Signed as free agent | Adam Kennedy | — | Seattle Mariners | Seattle Mariners signed free agent 2B Adam Kennedy to a minor league contract and invited him to spring training. |
| Jan 10, 2011 | Signed as free agent | Edgar Renteria | — | Cincinnati Reds | Cincinnati Reds signed free agent SS Edgar Renteria. |
| Jan 10, 2011 | Signed as free agent | Fred Lewis | — | Cincinnati Reds | Cincinnati Reds signed free agent LF Fred Lewis. |
| Jan 10, 2011 | Signed as free agent | Ryan Jones | — | Los Angeles Angels | Los Angeles Angels signed free agent OF Ryan Jones to a minor league contract. |
| Jan 8, 2011 | Trade | Guillermo Moscoso | Texas Rangers | Athletics | Texas Rangers Traded RHP Guillermo Moscoso to Oakland Athletics and Burlington Bees Traded RHP Ryan Kelly to Hickory Crawdads. |
| Jan 8, 2011 | Trade | Sam Fuld | Chicago Cubs | Tampa Bay Rays | Hudson Valley Renegades Traded LHP Zac Rosscup to Boise Hawks; Tampa Bay Rays Traded CF Fernando Perez and RHP Matt Garza to Chicago Cubs; Peoria Chiefs Traded SS Hak-Ju Lee to Bowling Green Hot Rods and Chicago Cubs Traded RF Brandon Guyer, RHP Chris Archer, C Robinson Chirinos and LF Sam Fuld to Tampa Bay Rays. |
| Jan 7, 2011 | Signed as free agent | Adam LaRoche | — | Washington Nationals | Washington Nationals signed free agent 1B Adam LaRoche. |
| Jan 7, 2011 | Signed as free agent | Joel Barrientos | — | Washington Nationals | Washington Nationals signed free agent LHP Joel Barrientos to a minor league contract. |
| Jan 7, 2011 | Signed as free agent | Jorge Calderon | — | Tampa Bay Rays | Tampa Bay Rays signed free agent SS Jorge Calderon to a minor league contract. |
| Jan 6, 2011 | Signed as free agent | Tony Pena Jr. | — | Boston Red Sox | Boston Red Sox signed free agent RHP Tony Pena Jr. to a minor league contract and invited him to spring training. |
| Jan 6, 2011 | Signed as free agent | Brian Bass | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RHP Brian Bass to a minor league contract and invited him to spring training. |
| Jan 6, 2011 | Signed as free agent | Joel Naughton | — | Philadelphia Phillies | Philadelphia Phillies signed free agent C Joel Naughton to a minor league contract and invited him to spring training. |
| Jan 6, 2011 | Signed as free agent | Derrek Lee | — | Baltimore Orioles | Baltimore Orioles signed free agent 1B Derrek Lee. |
| Jan 6, 2011 | Signed as free agent | Robb Quinlan | — | Philadelphia Phillies | Philadelphia Phillies signed free agent 1B Robb Quinlan to a minor league contract and invited him to spring training. |
| Jan 6, 2011 | Signed as free agent | Delwyn Young | — | Philadelphia Phillies | Philadelphia Phillies signed free agent RF Delwyn Young to a minor league contract and invited him to spring training. |
| Jan 6, 2011 | Signed as free agent | Edwin Maysonet | — | Milwaukee Brewers | Milwaukee Brewers signed free agent 2B Edwin Maysonet to a minor league contract and invited him to spring training. |
| Jan 6, 2011 | Signed as free agent | Shawn Riggans | — | Milwaukee Brewers | Milwaukee Brewers signed free agent C Shawn Riggans to a minor league contract and invited him to spring training. |
| Jan 6, 2011 | Signed as free agent | J.C. Romero | — | Philadelphia Phillies | Philadelphia Phillies signed free agent LHP J.C. Romero. |
| Jan 6, 2011 | Signed as free agent | Craig Italiano | — | San Diego Padres | San Diego Padres signed free agent RHP Craig Italiano to a minor league contract and invited him to spring training. |
| Jan 6, 2011 | Signed as free agent | Scott Munter | — | San Diego Padres | San Diego Padres signed free agent RHP Scott Munter to a minor league contract and invited him to spring training. |
| Jan 6, 2011 | Signed as free agent | Kevin Frandsen | — | San Diego Padres | San Diego Padres signed free agent 3B Kevin Frandsen to a minor league contract and invited him to spring training. |
| Jan 6, 2011 | Signed as free agent | Jesus Guzman | — | San Diego Padres | San Diego Padres signed free agent 3B Jesus Guzman to a minor league contract and invited him to spring training. |
| Jan 6, 2011 | Signed as free agent | Jose Augusto Figueroa | — | New York Yankees | New York Yankees signed free agent OF Jose Augusto Figueroa to a minor league contract. |
| Jan 6, 2011 | Signed as free agent | Luis Niebla | — | New York Yankees | New York Yankees signed free agent RHP Luis Niebla to a minor league contract. |
| Jan 6, 2011 | Signed as free agent | Arjenis Fernandez | — | Los Angeles Angels | Los Angeles Angels signed free agent RHP Arjenis Fernandez to a minor league contract. |
| Jan 6, 2011 | Signed as free agent | Giovanny Gallegos | — | New York Yankees | New York Yankees signed free agent RHP Giovanny Gallegos to a minor league contract. |
| Jan 5, 2011 | Signed as free agent | César Izturis | — | Baltimore Orioles | Baltimore Orioles signed free agent SS Cesar Izturis. |
| Jan 5, 2011 | Signed as free agent | Doug Mathis | — | Cleveland Guardians | Cleveland Indians signed free agent RHP Doug Mathis to a minor league contract and invited him to spring training. |
| Jan 5, 2011 | Signed as free agent | Adrian Beltré | — | Texas Rangers | Texas Rangers signed free agent 3B Adrian Beltre. |
| Jan 5, 2011 | Signed as free agent | Takashi Saito | — | Milwaukee Brewers | Milwaukee Brewers signed free agent RHP Takashi Saito. |
| Jan 5, 2011 | Signed as free agent | Brian Escolastico | — | Washington Nationals | Washington Nationals signed free agent LHP Brian Escolastico to a minor league contract. |
| Jan 5, 2011 | Signed as free agent | Dionicio Rosario | — | Washington Nationals | Washington Nationals signed free agent OF Dionicio Rosario to a minor league contract. |
| Jan 4, 2011 | Signed as free agent | Jeremy Hermida | — | Cincinnati Reds | Cincinnati Reds signed free agent LF Jeremy Hermida to a minor league contract and invited him to spring training. |
| Jan 4, 2011 | Signed as free agent | Octavio Dotel | — | Toronto Blue Jays | Toronto Blue Jays signed free agent RHP Octavio Dotel. |
| Jan 4, 2011 | Signed as free agent | Chad Cordero | — | Toronto Blue Jays | Toronto Blue Jays signed free agent RHP Chad Cordero to a minor league contract and invited him to spring training. |
| Jan 4, 2011 | Trade | Joe Martinez | Pittsburgh Pirates | Cleveland Guardians | Pittsburgh Pirates traded RHP Joe Martinez to Cleveland Indians. |
| Jan 4, 2011 | Signed as free agent | Josh Bard | — | Seattle Mariners | Seattle Mariners signed free agent C Josh Bard to a minor league contract and invited him to spring training. |
| Jan 4, 2011 | Released | Radhames Liz | — | San Diego Padres | San Diego Padres released RHP Radhames Liz. |
| Jan 3, 2011 | Signed as free agent | Brandon Webb | — | Texas Rangers | Texas Rangers signed free agent RHP Brandon Webb. |
| Jan 3, 2011 | Signed as free agent | Arthur Rhodes | — | Texas Rangers | Texas Rangers signed free agent LHP Arthur Rhodes. |
| Jan 3, 2011 | Signed as free agent | Brian Burres | — | Pittsburgh Pirates | Pittsburgh Pirates signed free agent LHP Brian Burres to a minor league contract and invited him to spring training. |
| Jan 3, 2011 | Signed as free agent | Pedro Feliciano | — | New York Yankees | New York Yankees signed free agent LHP Pedro Feliciano. |
| Jan 3, 2011 | Signed as free agent | Brad Hawpe | — | San Diego Padres | San Diego Padres signed free agent 1B Brad Hawpe. |
| Jan 3, 2011 | Signed as free agent | Miguel Olivo | — | Seattle Mariners | Seattle Mariners signed free agent C Miguel Olivo. |
| Jan 3, 2011 | Signed as free agent | Chris Capuano | — | New York Mets | New York Mets signed free agent LHP Chris Capuano. |
| Jan 3, 2011 | Signed as free agent | Taylor Buchholz | — | New York Mets | New York Mets signed free agent RHP Taylor Buchholz. |
| Jan 3, 2011 | Released | Brent Leach | — | Los Angeles Dodgers | Los Angeles Dodgers released LHP Brent Leach. |
| Jan 3, 2011 | Signed as free agent | Rougned Odor | — | Texas Rangers | Texas Rangers signed free agent SS Rougned Odor to a minor league contract. |
| Jan 2, 2011 | Signed as free agent | Jake Stevens | — | Minnesota Twins | Minnesota Twins signed free agent LHP Jake Stevens to a minor league contract. |
Every row is captured from MLB’s official StatsAPI transactions feed with MLB’s published description unedited. Signings include both major-league and minor-league contracts signed with a major-league club; injury-list moves and minor-league affiliate-only transactions are outside this archive’s scope.
Transaction data: official MLB StatsAPI. Data provided by MLB Advanced Media. Archived and published by Legends Deck.