'OB' Major League Baseball Players

Mike O'Berry Preston Michael O'Berry [1979-1985]

Billy O'Brien William Smith O'Brien [1884-1890]

Bob O'Brien Robert Allen O'Brien [1971-1971]

Buck O'Brien Thomas Joseph O'Brien [1911-1913]

Charlie O'Brien Charles Hugh O'Brien [1985-2000]

Cinders O'Brien John F. O'Brien [1888-1891]

Dan O'Brien Daniel Joques O'Brien [1978-1979]

Darby O'Brien William Darby O'Brien [1887-1892]

Dink O'Brien Frank Aloysius O'Brien [1923-1923]

Eddie O'Brien Edward Joseph O'Brien [1953-1958]

George O'Brien George Joseph O'Brien [1915-1915]

Jack O'Brien John Joseph O'Brien [1899-1903]

Jack O'Brien John K. O'Brien [1882-1890]

Jerry O'Brien Jeremiah O'Brien [1887-1887]

John O'Brien John Joseph O'Brien [1891-1899]

John O'Brien John E. O'Brien [1884-1884]

Johnny O'Brien John Thomas O'Brien [1953-1959]

Pete O'Brien Peter J. O'Brien [1901-1907]

Pete O'Brien Peter James O'Brien [1890-1890]

Pete O'Brien Peter Michael O'Brien [1982-1993]

Peter O'Brien Peter Robert O'Brien [2015-2019]

Ray O'Brien Raymond Joseph O'Brien [1916-1916]

Riley O'Brien Riley Chun-Young O'Brien [2021-2025]

Syd O'Brien Sydney Lloyd O'Brien [1969-1972]

Tom O'Brien Thomas J. O'Brien [1897-1900]

Tom O'Brien Thomas H. O'Brien [1882-1890]

Tommy O'Brien Thomas Edward O'Brien [1943-1950]

Sherman Obando Sherman Omar Obando [1993-1997]

Bailey Ober John Bailey Ober [2021-2025]

Henry Oberbeck Henry A. Oberbeck [1883-1884]

Scott Oberg Scott Michael Oberg [2015-2019]

Brett Oberholtzer Brett R. Oberholtzer [2013-2016]

Ken Oberkfell Kenneth Ray Oberkfell [1977-1992]

Doc Oberlander Hartman Louis Oberlander [1888-1888]

Frank Oberlin Frank Rufus Oberlin [1906-1910]

Wes Obermueller Wesley Mitchell Obermueller [2002-2007]

Jim Obradovich James Thomas Obradovich [1978-1978]