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'OB' Major LeaguersBaseball Players
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Charlie O'Brien played in the Major Leagues between 1985-2000
All historical Major Leaguers since 1871 are included on the site. Each player has their own page with bio, statistics, transactions, awards and quite a bit more. The players are organized below by last name but it is much quicker to get to the players by using the search box at the top of the page.

Some Random Major Leaguers: Bob Walk (1980-1993), Don Kessinger (1964-1979), Bones Ely (1884-1902), Scott Linebrink (2000-2011), Gavin Floyd (2004-2016), Robert Andino (2005-2016), Scott Stratton (1888-1895)

Total Major Leaguers19,266
'OB' Major Leaguers Listed Below35

Major Leaguers -- Minor Leaguers -- College Players -- Players Main -- Random Major Leaguer -- Random Active MLB -- Player Inclusion Rules

Major Leaguers starting with 'OB'

Top Active Players Recently Active Drafted Players 1st Round Draft Picks 7+ year Major Leaguer
Player NamePosProper NameHt Wt B-T BornDate Place HiLvlStat YearsMLB YearsDraft InformationStatusCurrent Org (Level)
Mike O'BerryCPreston Michael O'Berry6-2 195 R-R 1954-04-20 Birmingham,Alabama MLB1973-19851979-1985
1975-22- 516-BOS
Billy O'Brien1BWilliam Smith O'Brien6-0 185 R-R 1860-03-14 Albany,New York MLB1884-18901884-1890    
Bob O'BrienPRobert Allen O'Brien5-10 170 L-L 1949-04-23 Pittsburgh,Pennsylvania MLB1971-19711971-1971
1969- 4-  74-LAN
Buck O'BrienPThomas Joseph O'Brien5-10 188 R-R 1882-05-09 Brockton,Massachusetts MLB1911-19131911-1913    
Charlie O'BrienCCharles Hugh O'Brien6-2 205 R-R 1961-05-01 Tulsa,Oklahoma MLB1982-20001985-2000
1982- 5- 132-OAK
Cinders O'BrienPJohn F. O'Brien5-10 165 R-R 1867-04-15 Troy,New York MLB1888-18911888-1891    
Dan O'BrienPDaniel Jogues O'Brien6-4 215 R-R 1954-04-22 St. Petersburg,Florida MLB1975-19811978-1979
1976- 3-  61-SLN
Darby O'BrienOFWilliam Darby O'Brien6-1 186 R-R 1863-09-01 Peoria,Illinois MLB1887-18921887-1892    
Dink O'BrienCFrank Aloysius O'Brien5-8 160 R-R 1894-09-13 San Francisco,California MLB1923-19231923-1923    
Eddie O'BrienSS-OFEdward Joseph O'Brien5-9 165 R-R 1930-12-11 South Amboy,New Jersey MLB1953-19581953-1958    
George O'BrienCGeorge Joseph O'Brien6-0 185 R-R 1889-11-04 Cleveland,Ohio MLB1915-19151915-1915    
Jack O'BrienC-1BJohn K. O'Brien5-10 184 R-R 1860-06-12 Philadelphia,Pennsylvania MLB1882-18901882-1890    
Jack O'BrienOFJohn Joseph O'Brien6-1 165 L-R 1873-02-05 Watervliet,New York MLB1899-19031899-1903    
Jerry O'Brien2BJeremiah O'Brien   - 1864-02-02 - MLB1887-18871887-1887    
John O'Brien2BJohn Joseph O'Brien5-9 175 L-R 1866-07-13 Saint John,New Brunswick MLB1891-18991891-1899    
John O'BrienOFJohn E. O'Brien5-11 187 -R 1851-10-22 Columbus,Ohio MLB1884-18841884-1884    
Johnny O'Brien2BJohn Thomas O'Brien5-9 170 R-R 1930-12-11 South Amboy,New Jersey MLB1953-19591953-1959    
Pete O'Brien2BPeter James O'Brien5-9 165 R-R 1867-06-16 Chicago,Illinois MLB1890-18901890-1890    
Pete O'Brien3BPeter J. O'Brien5-7 170 L-R 1877-06-17 Binghamton,New York MLB1901-19071901-1907    
Pete O'Brien1BPeter Michael O'Brien6-1 190 L-L 1958-02-09 Santa Monica,California MLB1978-19931982-1993
1979-15- 381-TEX
Peter O'BrienCPeter Robert O'Brien6-5 235 R-R 1990-07-15 Miami Gardens,Florida MLB2009-20182015-2018
2012- 2-  94-NYA
ActiveMiami Marlins (MLB)
Ray O'BrienOFRaymond Joseph O'Brien5-9 175 L-L 1892-10-31 St. Louis,Missouri MLB1916-19161916-1916    
Syd O'Brien3B-SSSydney Lloyd O'Brien6-1 185 R-R 1944-12-18 Compton,California MLB1964-19721969-1972
1964-   UDFA-BOS
Tom O'BrienOFThomas J. O'Brien5-11 170 - 1873-02-20 Verona,Pennsylvania MLB1897-19001897-1900    
Tom O'Brien2BThomas H. O'Brien6-1 185 R-R 1860-06-22 Salem,Massachusetts MLB1882-18901882-1890    
Player NamePosProper NameHt Wt B-T BornDate Place HiLvlStat YearsMLB YearsDraft InformationStatusCurrent Org (Level)
Tommy O'BrienOFThomas Edward O'Brien5-11 195 R-R 1918-12-19 Anniston,Alabama MLB1943-19501943-1950    
Sherman ObandoRFSherman Omar Obando Gainor6-4 215 R-R 1970-01-23 Bocas del Toro,Panama MLB1988-20041993-1997
1987-   UDFA-NYA
Henry OberbeckPHenry A. Oberbeck   - 1858-05-17 St. Louis,Missouri MLB1883-18841883-1884    
Scott ObergPScott Michael Oberg6-1 180 R-R 1990-03-13 Tewksbury,Massachusetts MLB2009-20182015-2018
2012-15- 468-COL
ActiveColorado Rockies (MLB)
Brett OberholtzerPBrett R. Oberholtzer6-1 210 L-L 1989-07-01 New Castle,Delaware MLB2008-20182013-2016
2008- 8- 250-ATL
Free Agent  
Ken Oberkfell3B-2BKenneth Ray Oberkfell6-0 210 L-R 1956-05-04 Highland,Illinois MLB1975-19921977-1992
1975-   UDFA-SLN
Doc OberlanderPHartman Louis Oberlander5-10 165 -L 1864-05-12 Waukegan,Illinois MLB1888-18881888-1888    
Frank OberlinPFrank Rufus Oberlin6-1 165 R-R 1876-03-29 Elsie,Michigan MLB1906-19101906-1910    
Wes ObermuellerPWesley Mitchell Obermueller6-2 195 R-R 1976-12-22 Cedar Rapids,Iowa MLB1997-20072002-2007
1999- 2-  58-KCA
Jim Obradovich1BJames Thomas Obradovich6-2 200 L-L 1949-09-13 Fort Campbell,Kentucky MLB1977-19791978-1978
1967-24- 472-MIN
35 player(s) listed