John O'Brien

There have been multiple persons named John O'Brien in baseball history:

• John O'Brien (o'brijo01) - John E. O'Brien, outfielder in 1884
• John O'Brien (o'brijo02) - John Joseph O'Brien, infielder from 1891-1899
• Johnny O'Brien - John Thomas O'Brien, infielder from 1953-1959
• Darby O'Brien (o'brida02) - John F. O'Brien, pitcher from 1888-1891, also known as Cinders O'Brien

• John O'Brien (minors01) - John H. O'Brien, minor league manager from 1901-1907
• John O'Brien (minors02) - John O'Brien, minor league player fin 1891
• John O'Brien (minors03) - John O'Brien, minor league player in 1891
• John O'Brien (minors04) - John J. O'Brien, minor league player from 1898-1899
• John O'Brien (minors05) - John O'Brien, minor league player from 1898-1898
• John O'Brien (minors06) - John O'Brien, minor league player in 1898
• John O'Brien (minors07) - John J. O'Brien, minor league player in 1900
• John O'Brien (minors08) - John J. O'Brien, minor league player in 1900
• John O'Brien (minors09) - John O'Brien, minor league player from 1901-1906
• John O'Brien (minors10) - John O'Brien, minor league player from 1908-1909
• John O'Brien (minors11) - John L. O'Brien, minor league player in 1908
• John O'Brien (minors12) - John O'Brien, minor league player in 1909
• John O'Brien (minors13) - John J. O'Brien, minor league player from 1913-1916
• John O'Brien (minors14) - John Joseph O'Brien, minor league player from 1991-2001
• John O'Brien (minors15) - John O'Brien, minor league player in 1994

• John O'Brian, John O'Brian, minor league player in 1993

See also:

• Jack O'Brien

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