Baseball Player Autographs (Letter O)

Baseball Player Autographs (Letter O)

Baseball Almanac is pleased to present a list of EVERY Major League player with a last name that starts with an 'O' on our site whose player page includes an autographed baseball card. Included on the chart are links to the players biography, the years he played, and a (HOF) Hall of Fame mark (Y=Yes). Bold entries stand for active players which are defined as those who played in at least one Major League game during the most recently completed season.

"The fun-loving brothers (Johnny & Eddie O'Brien) derived great pleasure from confusing managers, and the Topps baseball card company, as to who was who; Topps solved the problem one year by putting both of them on one card." - Author Ellery Clark on BaseballLibrary.com

Baseball Player Autographs A Classic Collection (Letter O)
Player Name	Years Played	HOF
Charlie O'Brien Autograph	1985 - 2000
Eddie O'Brien Autograph	1953 - 1958
Johnny O'Brien Autograph	1953 - 1959
Pete O'Brien Autograph	1982 - 1993
Syd O'Brien Autograph	1969 - 1972
Jack O'Connor Autograph	1981 - 1987
Mike O'Connor Autograph	2006 - 2006
Billy O'Dell Autograph	1954 - 1967
John O'Donoghue Autograph	1963 - 1971
John O'Donoghue Autograph	1993 - 1993
Bob O'Farrell Autograph	1915 - 1935
Greg O'Halloran Autograph	1994 - 1994
Troy O'Leary Autograph	1993 - 2003
Tom O'Malley Autograph	1982 - 1990
Randy O'Neal Autograph	1984 - 1990
Paul O'Neill Autograph	1985 - 2001
Jim O'Toole Autograph	1958 - 1967
Johnny Oates Autograph	1970 - 1981
Sherman Obando Autograph	1993 - 1997
Ken Oberkfell Autograph	1977 - 1992
Alex Ochoa Autograph	1995 - 2002
Blue Moon Odom Autograph	1964 - 1976
Bryan Oelkers Autograph	1983 - 1986
Joe Oeschger Autograph	1914 - 1925
Ron Oester Autograph	1978 - 1990
Jose Offerman Autograph	1990 - 2005
Rowland Office Autograph	1972 - 1983
Chad Ogea Autograph	1994 - 1999
Ben Oglivie Autograph	1971 - 1986
Tomo Ohka Autograph	1999 - 2007
Kevin Ohme Autograph	2003 - 2003
Bob Ojeda Autograph	1980 - 1994
Bob Oldis Autograph	1953 - 1963
John Olerud Autograph	1989 - 2005
Steve Olin Autograph	1989 - 1992
Jose Oliva Autograph	1994 - 1995
Tony Oliva Autograph	1962 - 1976
Al Oliver Autograph	1968 - 1985
Bob Oliver Autograph	1965 - 1975
Darren Oliver Autograph	1993 - 2007
Gene Oliver Autograph	1959 - 1969
Joe Oliver Autograph	1989 - 2001
Nate Oliver Autograph	1963 - 1969
Francisco Oliveras Autograph	1989 - 1992
Miguel Olivo Autograph	2002 - 2007
Jim Ollom Autograph	1966 - 1967
Greg Olson Autograph	1989 - 1993
Gregg Olson Autograph	1988 - 2001
Karl Olson Autograph	1951 - 1957
Tim Olson Autograph	2004 - 2005
Ed Olwine Autograph	1986 - 1988
Steve Ontiveros Autograph	1973 - 1980
Steve Ontiveros Autograph	1985 - 2000
Jose Oquendo Autograph	1983 - 1995
Mike Oquist Autograph	1993 - 1999
Ernie Oravetz Autograph	1955 - 1956
Rey Ordonez Autograph	1996 - 2004
Joe Orengo Autograph	1939 - 1945
Kevin Orie Autograph	1997 - 2002
Jesse Orosco Autograph	1979 - 2003
Joe Orsulak Autograph	1983 - 1997
Jorge Orta Autograph	1972 - 1987
Phil Ortega Autograph	1960 - 1969
David Ortiz Autograph	1997 - 2007
Junior Ortiz Autograph	1982 - 1994
Luis Ortiz Autograph	1993 - 1996
Russ Ortiz Autograph	1998 - 2007
Dan Ortmeier Autograph	2005 - 2007
John Orton Autograph	1989 - 1993
Donovan Osborne Autograph	1992 - 2004
Claude Osteen Autograph	1957 - 1975
Jimmy Osting Autograph	2001 - 2002
Al Osuna Autograph	1990 - 1996
Roy Oswalt Autograph	2001 - 2007
Willis Otanez Autograph	1998 - 1999
Ricky Otero Autograph	1995 - 1997
Amos Otis Autograph	1967 - 1984
Ed Ott Autograph	1974 - 1981
Dave Otto Autograph	1987 - 1994
Jimmy Outlaw Autograph	1937 - 1949
Lyle Overbay Autograph	2001 - 2007
Bob Owchinko Autograph	1976 - 1986
Dave Owen Autograph	1983 - 1988
Larry Owen Autograph	1981 - 1988
Marv Owen Autograph	1931 - 1940
Mickey Owen Autograph	1937 - 1954
Spike Owen Autograph	1983 - 1995
Eric Owens Autograph	1995 - 2003
Henry Owens Autograph	2006 - 2007
Jayhawk Owens Autograph	1993 - 1996
Pablo Ozuna Autograph	2000 - 2007
Player Name	Years Played	HOF

The player with the earliest debut date on the chart above is Joe Oeschger, who made his major league debut on April 21, 1914!

Hall of Famers in our collection from this page are non-existant (sorry). The two who were Major League players with a last name that begins with an 'O' are Jim O'Rourke & Mel Ott.

Did you know that U.S. State that starts with an 'O' that has the most ballplayers born in it is Ohio?

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