Every major-league player whose last name starts with O, sorted by last name. Each row links to the player's full career page with year-by-year stats, totals by team, LWAR, awards and postseason lines.

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Last names O

392 players

MLB players with last names starting with O, Oakes to Ozuna: years played, main position, career games and career LWAR.
Player	Years	Pos	Games	LWAR
Rebel Oakes	1909-1915	OF	986	10.9
Trevor Oaks	2018	P	4	-0.3
Prince Oana	1934-1945	P	13	0.6
Johnny Oates	1970-1981	C	593	4.6
Sherman Obando	1993-1997	OF	177	-1.0
Bailey Ober	2021	P	115	8.2
Henry Oberbeck	1883-1884	OF	66	-1.7
Scott Oberg	2019	P	259	3.4
Brett Oberholtzer	2015-2016	P	82	1.9
Ken Oberkfell	1977-1992	3B	1,602	2.7
Doc Oberlander	1888	P	3	-1.3
Frank Oberlin	1906-1910	P	44	-3.7
Wes Obermueller	2003-2007	P	80	-2.0
Mike O'Berry	1979-1985	C	197	0.5
Jim Obradovich	1978	1B	10	-0.1
Billy O'Brien	1884-1890	1B	356	0.9
Bob O'Brien	1971	P	14	0.4
Buck O'Brien	1911-1913	P	64	8.6
Charlie O'Brien	1985-2000	C	800	6.3
Cinders O'Brien	1888-1891	P	136	11.3
Dan O'Brien	1978-1979	P	13	-0.7
Darby O'Brien	1887-1892	OF	709	13.3
Dink O'Brien	1923	C	15	0.2
Eddie O'Brien	1953-1957	SS	230	-2.8
George O'Brien	1915	C	3	0.0
Jack O'Brien	1882-1890	C	555	11.5
Jack O'Brien	1899-1903	OF	326	-0.4
John O'Brien	1884	OF	18	0.2
John O'Brien	1891-1899	2B	501	-0.9
Johnny O'Brien	1953-1959	2B	339	-4.7
Pete O'Brien	1887-1890	2B	28	0.4
Pete O'Brien	1901-1907	2B	249	-0.5
Pete O'Brien	1982-1993	1B	1,567	25.6
Peter O'Brien	2015-2019	OF	72	-0.9
Ray O'Brien	1916	OF	16	-1.6
Riley O'Brien	2021-2025	P	52	1.1
Syd O'Brien	1969-1972	3B	378	-8.4
Tom O'Brien	1882-1890	2B	270	0.7
Tom O'Brien	1897-1900	OF	428	2.0
Tommy O'Brien	1943-1950	OF	293	-0.4
Alex Ochoa	1995-2002	OF	807	5.1
Ivan Ochoa	2008	SS	47	-0.5
Whitey Ock	1935	C	1	0.0
Walter Ockey	1944	P	2	0.1
Danny O'Connell	1950-1962	2B	1,143	14.0
Jimmy O'Connell	1923-1924	OF	139	-0.1
John O'Connell	1891-1902	2B	16	-0.3
John O'Connell	1928-1929	C	3	0.0
Pat O'Connell	1886	OF	42	-0.4
Andy O'Connor	1908	P	1	-0.9
Brian O'Connor	2000	P	6	-0.2
Dan O'Connor	1890	1B	6	0.4
Frank O'Connor	1893	P	3	0.0
Jack O'Connor	1887-1910	C	1,452	2.4
Jack O'Connor	1981-1987	P	129	0.2
Johnny O'Connor	1916	C	1	0.0
Mike O'Connor	2006-2008	P	35	-0.2
Paddy O'Connor	1908-1918	C	108	-0.2
Darren O'Day	2013	P	644	17.9
Hank O'Day	1884-1890	P	201	11.5
Ken O'Dea	1935-1946	C	832	10.6
Paul O'Dea	1944-1945	OF	163	0.7
Billy O'Dell	1954-1967	P	479	28.5
Ted Odenwald	1921	P	11	0.1
Blue Moon Odom	1964-1975	P	295	13.3
Dave Odom	1943	P	22	-0.5
Heinie Odom	1925	3B	1	0.1
Joseph Odom	2020-2021	C	20	-0.3
George O'Donnell	1954	P	21	0.3
Harry O'Donnell	1927	C	16	-0.2
John O'Donnell	1884	C	1	0.0
John O'Donoghue	1963-1970	P	257	2.3
John O'Donoghue	1993	P	11	0.0
Rougned Odor	2014-2023	2B	1,154	13.4
Jake Odorizzi	2014-2021	P	241	16.0
Lefty O'Doul	1919-1934	OF	970	26.5
Fred Odwell	1904-1907	OF	411	3.1
Bryan Oelkers	1983-1986	P	45	-0.9
Trent Oeltjen	2009-2011	OF	99	-0.7
Chuck Oertel	1958	OF	14	-0.3
Joe Oeschger	1914-1925	P	365	8.4
Ron Oester	1978-1990	2B	1,276	22.5
Bob O'Farrell	1915-1935	C	1,492	24.5
Jose Offerman	1990-2005	SS	1,651	11.5
Rowland Office	1972-1983	OF	899	-6.4
Eric O'Flaherty	2007-2009	P	496	5.8
Alexi Ogando	2010-2013	P	284	8.8
Cristofer Ogando	2022	P	3	0.0
Nefi Ogando	2015-2016	P	18	0.2
Shinnosuke Ogasawara	2025	P	23	-0.7
Curly Ogden	1922-1926	P	93	5.9
Jack Ogden	1918-1932	P	123	5.1
Chad Ogea	1997-1999	P	129	5.6
Jim Oglesby	1936	1B	3	-0.2
Ben Oglivie	1971-1986	OF	1,754	30.1
Brian O'Grady	2019-2021	OF	62	-0.2
Chris O'Grady	2017	P	21	0.2
Bruce Ogrodowski	1936-1937	C	184	-0.4
Joe Ogrodowski	1925	P	1	-0.7
Seunghwan Oh	2016	P	232	4.7
Hal O'Hagan	1892-1902	1B	63	-1.2
Greg O'Halloran	1994	C	12	-0.2
Bill O'Hara	1909-1910	OF	124	1.2
Kid O'Hara	1904	OF	8	-0.1
Tom O'Hara	1906-1907	OF	62	-0.3
Ryan O'Hearn	2018-2025	1B	740	-0.4
Tomo Ohka	2001-2009	P	202	9.6
Joe Ohl	1909	P	4	0.0
Pierson Ohl	2025	P	14	-0.4
Ross Ohlendorf	2008-2013	P	209	0.3
Mike Ohlman	2017	C	7	0.0
Will Ohman	2001-2009	P	483	4.3
Kevin Ohme	2003	P	2	0.3
Logan O'Hoppe	2022-2025	C	311	4.9
Shohei Ohtani	2018-2025	P	1,033	51.8
Kirt Ojala	1997-1998	P	56	0.3
Augie Ojeda	2000-2010	2B	502	-0.6
Bob Ojeda	1986-1992	P	351	21.9
Miguel Ojeda	2003-2006	C	212	0.8
Hideki Okajima	2009	P	266	6.8
Brian O'Keefe	2022-2023	C	10	-0.1
Steven Okert	2016-2021	P	340	4.9
Chris Okey	2022-2023	C	9	-0.1
Frank Okrie	1920	P	21	-0.3
Len Okrie	1948-1952	C	42	-0.1
Jim Olander	1991	OF	12	-0.2
Dave Oldfield	1883-1886	C	46	-0.3
John Oldham	1956	DH	1	0.0
Red Oldham	1914-1926	P	176	7.6
Bob Oldis	1953-1963	C	135	0.5
Rube Oldring	1905-1918	OF	1,239	14.2
Charley O'Leary	1904-1934	SS	955	-3.8
Dan O'Leary	1879-1884	OF	45	0.4
Troy O'Leary	1993-2003	OF	1,198	9.1
John Olerud	1989-2005	1B	2,234	51.9
Frank Olin	1884-1885	OF	49	1.2
Steve Olin	1989-1992	P	195	5.3
Jared Oliva	2020-2021	OF	26	-0.6
Jose Oliva	1994-1995	3B	89	-0.9
Tony Oliva	1962-1976	OF	1,676	37.6
Ed Olivares	1960-1961	OF	24	-0.8
Edward Olivares	2020-2024	OF	285	-1.8
Omar Olivares	1990-2001	P	349	13.9
Al Oliver	1968-1985	OF	2,368	42.9
Andy Oliver	2010	P	7	-1.1
Bob Oliver	1965-1975	1B	847	5.7
Darren Oliver	1997-2006	P	766	20.4
Dave Oliver	1977	2B	7	0.0
Gene Oliver	1959-1969	C	786	9.1
Joe Oliver	1989-2001	C	1,076	10.9
Nate Oliver	1963-1969	2B	410	-7.7
Tom Oliver	1930-1933	OF	514	5.1
Hector Olivera	2015-2016	3B	30	-0.6
Francisco Oliveras	1990-1992	P	116	2.7
Lester Oliveros	2011-2014	P	27	0.0
Chi-Chi Olivo	1964-1966	P	96	1.3
Diomedes Olivo	1960-1962	P	85	2.2
Miguel Olivo	2002-2014	C	1,124	10.1
Adam Oller	2022-2024	P	36	-2.6
Jim Ollom	1966-1967	P	24	-0.6
Ray Olmedo	2003-2012	SS	218	-3.0
Luis Olmo	1943-1951	OF	462	-10.0
Edgar Olmos	2013-2015	P	11	-0.7
Fred Olmstead	1908-1911	P	66	3.8
Al Olmsted	1980	P	5	0.6
Hank Olmsted	1905	P	3	0.3
Jack O'Loughlin	2024	P	4	0.1
Patrick O'Loughlin	1883	OF	1	0.0
Barney Olsen	1941	OF	24	0.4
Kevin Olsen	2001-2002	P	28	-0.2
Ole Olsen	1922-1923	P	54	-0.2
Scott Olsen	2005-2010	P	130	-0.1
Vern Olsen	1939-1942	P	112	8.3
Garrett Olson	2008-2009	P	104	-2.5
Greg Olson	1989-1993	C	414	5.8
Gregg Olson	1993-1999	P	622	14.6
Ivy Olson	1911-1924	SS	1,574	13.6
Karl Olson	1951-1957	OF	279	-3.1
Marv Olson	1931-1933	2B	133	-2.5
Matt Olson	2016-2025	1B	1,223	43.6
Reese Olson	2023-2025	P	56	4.7
Ted Olson	1936-1938	P	18	-0.6
Tim Olson	2004-2005	3B	51	-0.2
Tyler Olson	2015-2019	P	124	1.7
Mike Olt	2012-2015	3B	135	-2.6
Ed Olwine	1986-1987	P	80	0.0
Ryan O'Malley	2006	P	2	0.5
Shawn O'Malley	2014-2016	OF	124	-1.0
Tom O'Malley	1982-1990	3B	466	2.1
Ollie O'Mara	1912-1919	SS	412	-0.9
Eddie O'Meara	1895-1896	C	13	-0.2
Brian Omogrosso	2012-2013	P	29	-0.3
Jorge Ona	2020	OF	5	0.1
Logan Ondrusek	2010-2014	P	288	2.4
Oran O'Neal	1925-1927	P	13	-1.1
Randy O'Neal	1987-1990	P	142	1.5
Ed O'Neil	1890	P	8	-3.8
Fancy O'Neil	1874	OF	1	0.0
John O'Neil	1899-1902	C	4	-0.3
John O'Neil	1946	SS	46	-0.8
Mickey O'Neil	1919-1927	C	672	-0.7
Dennis O'Neill	1893	1B	7	-0.2
Emmett O'Neill	1943-1946	P	66	-1.0
Fred O'Neill	1887	OF	6	0.1
Harry O'Neill	1922	P	4	0.2
Harry O'Neill	1939	C	1	0.0
Hugh O'Neill	1875	P	5	-1.4
Jack O'Neill	1902-1906	C	303	-1.3
Jim O'Neill	1920-1923	SS	109	1.4
John O'Neill	1904-1906	OF	206	0.5
Mike O'Neill	1901-1907	P	85	9.2
Paul O'Neill	1985-2001	OF	2,053	34.2
Peaches O'Neill	1904	C	8	0.0
Steve O'Neill	1911-1928	C	1,590	27.1
Tip O'Neill	1883-1892	OF	1,052	31.5
Tyler O'Neill	2018-2025	OF	644	7.7
Manuel Onis	1935	C	1	0.1
Eddie Onslow	1912-1927	1B	64	-2.2
Jack Onslow	1912-1917	C	45	0.0
Steve Ontiveros	1973-1980	3B	732	-10.4
Steve Ontiveros	1989	P	207	11.3
Jose Oquendo	1983-1995	2B	1,190	10.3
Mike Oquist	1997-1999	P	133	2.5
Tom Oran	1875	OF	19	-0.1
Ernie Oravetz	1955-1956	OF	188	-0.8
Luis Ordaz	1997-2006	SS	206	-2.0
Tony Ordenana	1943	SS	1	0.1
Magglio Ordonez	1997-2011	OF	1,848	35.8
Rey Ordonez	1996-2004	SS	973	2.3
Joe Orengo	1939-1945	3B	366	1.8
Nate Orf	2018-2020	2B	21	-0.5
Kevin Orie	1997-2002	3B	316	7.8
Don O'Riley	1969-1970	P	27	-1.4
Paulo Orlando	2015-2018	OF	278	0.1
George Orme	1920	OF	4	0.2
Jess Orndorff	1907	C	5	-0.2
Jonathan Ornelas	2023-2025	SS	32	0.0
Tirso Ornelas	2025	OF	7	-0.3
Eddie Oropesa	2001-2004	P	125	-2.3
Jesse Orosco	1979-2002	P	1,252	27.0
Frank O'Rourke	1912-1931	3B	1,131	3.2
Jim O'Rourke	1872-1904	OF	1,999	52.8
Jim O'Rourke	1959	DH	2	-0.1
Jimmy O'Rourke	1908	OF	34	-0.4
Joe O'Rourke	1929	DH	3	-0.1
John O'Rourke	1879-1883	OF	230	8.5
Mike O'Rourke	1890	P	6	1.2
O'Rourke	1872	P	1	-0.3
Patsy O'Rourke	1908	SS	53	-0.1
Ryan O'Rourke	2016	P	56	0.0
Tim O'Rourke	1890-1894	3B	387	5.9
Tom O'Rourke	1887-1890	C	85	-0.9
Billy Orr	1913-1914	SS	40	-1.2
Dave Orr	1883-1890	1B	791	21.6
Pete Orr	2005-2013	2B	443	-2.1
Joe Orrell	1943-1945	P	32	0.9
Ernie Orsatti	1927-1935	OF	701	4.4
John Orsino	1961-1967	C	332	5.0
Joe Orsulak	1983-1997	OF	1,494	4.6
Kaleb Ort	2021-2025	P	118	-0.3
Jorge Orta	1972-1987	2B	1,755	10.9
Anthony Ortega	2009	P	3	-0.7
Bill Ortega	2001	DH	5	-0.1
Jose Ortega	2012-2014	P	14	-0.1
Oliver Ortega	2021-2023	P	45	0.4
Phil Ortega	1960-1968	P	204	0.1
Rafael Ortega	2012-2024	OF	425	1.6
Frank Ortenzio	1973	1B	9	0.4
Al Orth	1895-1909	P	440	57.3
Danny Ortiz	2017	OF	9	-0.3
David Ortiz	1997-2016	1B	2,408	64.9
Hector Ortiz	1998-2002	C	93	0.9
Javier Ortiz	1990-1991	OF	77	1.2
Joe Ortiz	2013	P	32	0.0
Joey Ortiz	2023-2025	SS	306	3.8
Jose Ortiz	1969-1971	OF	67	-0.1
Jose Ortiz	2000-2002	2B	136	0.9
Junior Ortiz	1982-1994	C	749	4.0
Luis Ortiz	1993-1996	3B	60	-1.7
Luis Ortiz	2018-2024	P	24	0.1
Luis Ortiz	2022-2025	P	75	3.9
Oliverio Ortiz	1944	P	2	-0.4
Ramon Ortiz	2001-2013	P	303	5.6
Roberto Ortiz	1941-1950	OF	213	-2.5
Russ Ortiz	1998-2009	P	311	16.6
Daniel Ortmeier	2005-2008	OF	124	-0.8
John Orton	1989-1993	C	156	-0.1
Chad Orvella	2005-2007	P	69	-1.2
Ossie Orwoll	1928-1929	P	39	3.4
Eric Orze	2024-2025	P	35	0.6
Bob Osborn	1926-1931	P	121	4.4
Fred Osborn	1907-1909	OF	266	2.1
Ozzie Osborn	1975	P	24	0.4
Bobo Osborne	1957-1963	1B	359	-5.3
Donovan Osborne	1992-2002	P	163	8.6
Fred Osborne	1890	P	8	-4.2
Tiny Osborne	1922-1925	P	142	1.6
Wayne Osborne	1936	P	7	0.0
Pat Osburn	1974	P	12	-0.7
Charlie Osgood	1944	P	1	0.1
Josh Osich	2015-2019	P	251	-0.2
Keith Osik	1996-2005	C	456	-0.1
Dan Osinski	1962-1969	P	324	6.8
Franquelis Osoria	2005-2008	P	104	-0.3
Harry Ostdiek	1904-1908	C	8	0.1
Champ Osteen	1903-1909	SS	83	-0.8
Claude Osteen	1957-1974	P	541	54.5
Darrell Osteen	1966-1970	P	29	-1.6
Fred Ostendorf	1914	P	1	-0.4
Bill Oster	1954	P	8	-0.6
Red Ostergard	1921	DH	12	-0.1
Charlie Osterhout	1879	C	2	-0.1
Fritz Ostermueller	1934-1948	P	390	30.4
Jimmy Osting	2002	P	6	-0.3
Brian Ostrosser	1973	SS	4	-0.1
Joe Ostrowski	1948-1952	P	150	2.2
Johnny Ostrowski	1943-1950	OF	216	1.5
Sean O'Sullivan	2009-2015	P	71	-3.8
Al Osuna	1991-1996	P	218	1.6
Alejandro Osuna	2025	OF	63	0.6
Antonio Osuna	1995-2000	P	411	9.0
Jose Osuna	2017-2020	OF	276	-3.3
Roberto Osuna	2015-2020	P	314	9.3
Corey Oswalt	2018-2021	P	26	-1.0
Roy Oswalt	2001-2013	P	365	46.7
Michel Otañez	2024-2025	P	42	0.0
Willis Otanez	1998-1999	3B	74	-0.6
Dan Otero	2012	P	358	7.5
Reggie Otero	1945	1B	14	0.2
Ricky Otero	1995-1997	OF	189	-1.0
Bill Otey	1907-1911	P	24	-1.5
Amos Otis	1967-1984	OF	1,998	69.3
Bill Otis	1912	OF	4	-0.3
Harry Otis	1909	P	5	0.2
Denny O'Toole	1969-1973	P	15	-0.2
Jim O'Toole	1958-1967	P	270	18.9
Marty O'Toole	1908-1914	P	100	7.8
Akinori Otsuka	2004-2005	P	236	7.4
Billy Ott	1962-1964	OF	32	-0.2
Ed Ott	1974-1981	C	567	8.2
Mel Ott	1926-1947	OF	2,730	121.9
Adam Ottavino	2010-2013	P	727	13.6
Jim Otten	1980-1981	P	64	-2.2
John Otten	1895	C	26	-0.3
Billy Otterson	1887	SS	30	0.0
Dave Otto	1993-1994	P	109	0.1
Glenn Otto	2021-2023	P	39	-1.2
Phil Ouellette	1986	C	10	-0.1
Johnny Oulliber	1933	OF	22	-0.7
Bill Outen	1933	C	93	1.0
Jimmy Outlaw	1937-1949	OF	650	2.1
James Outman	2022-2025	OF	267	2.2
Josh Outman	2009-2013	P	161	1.4
Orval Overall	1905-1913	P	218	33.8
Lyle Overbay	2001-2014	1B	1,587	15.2
Stubby Overmire	1943-1952	P	266	9.9
Connor Overton	2021	P	18	0.5
Dillon Overton	2017	P	17	-2.2
Mike Overy	1976	P	5	-0.1
Johan Oviedo	2021	P	81	3.8
Juan Carlos Oviedo	2011	P	349	3.8
Luis Oviedo	2021	P	22	-1.4
Ernie Ovitz	1911	P	1	0.0
Bob Owchinko	1976-1986	P	275	5.1
Dave Owen	1983-1988	SS	92	-1.9
Frank Owen	1901-1909	P	194	19.8
Hunter Owen	2021	OF	3	-0.1
Larry Owen	1981-1988	C	171	0.0
Marv Owen	1931-1940	3B	1,011	3.7
Mickey Owen	1937-1954	C	1,209	10.4
Spike Owen	1983-1995	SS	1,544	9.0
Eric Owens	1995-2003	OF	806	-1.1
Henry Owens	2006-2007	P	25	0.6
Henry Owens	2015	P	16	-0.3
Jack Owens	1935	C	2	0.0
Jayhawk Owens	1993-1996	C	130	2.0
Jerry Owens	2006-2009	OF	129	0.7
Jim Owens	1955-1966	P	286	2.0
Red Owens	1899-1905	2B	51	-0.8
Rudy Owens	2014	P	1	-0.2
Tyler Owens	2025	P	3	0.1
Yip Owens	1905-1915	C	222	2.0
Chris Owings	2013-2023	SS	723	-2.5
Micah Owings	2007-2012	P	138	4.7
Rick Ownbey	1982-1986	P	39	0.5
Henry Oxley	1884	C	3	-0.1
Chris Oxspring	2005	P	5	-0.1
Andy Oyler	1902	3B	27	-0.1
Ray Oyler	1965-1970	SS	542	7.9
Horace Ozmer	1923	P	1	0.0
Marcell Ozuna	2013-2025	OF	1,614	26.1
Pablo Ozuna	2000-2008	2B	309	-1.7

Years are the first and last major-league season on the player’s page (the data runs through the newest full season). Games are a pitcher’s games pitched or a hitter’s games played. LWAR is the site’s own wins above replacement; a dash means the player has no LWAR row. Click a column heading to sort the rows on this page.

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MLB Players With Last Names Starting With O

392 playersOakes to Ozuna