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Major League Baseball Players

'OS'
Major League Baseball Players
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A list of current or former Major Leaguers whose last name begins with OS.

Active players in bold.
Player List
Sean O'Sullivan   Sean Daniel O'Sullivan  [2009-2016]
Bob Osborn   John Bode Osborn  [1925-1931]
Fred Osborn   Wilfred Pearl Osborn  [1907-1909]
Ozzie Osborn   Daniel Leon Osborn  [1975-1975]
Bobo Osborne   Lawrence Sidney Osborne  [1957-1963]
Donovan Osborne   Donovan Alan Osborne  [1992-2004]
Fred Osborne   Frederick W. Osborne  [1890-1890]
Tiny Osborne   Earnest Preston Osborne  [1922-1925]
Wayne Osborne   Wayne Harold Osborne  [1935-1936]
Pat Osburn   Larry Patrick Osburn  [1974-1975]
Charlie Osgood   Charles Benjamin Osgood  [1944-1944]
Josh Osich   Joshua Michael Osich  [2015-2021]
Keith Osik   Keith Richard Osik  [1996-2005]
Dan Osinski   Daniel Osinski  [1962-1970]
Franquelis Osoria   Franquelis Antonio Osoria  [2005-2008]
Harry Ostdiek   Henry Girard Ostdiek  [1904-1908]
Champ Osteen   James Champlin Osteen  [1903-1909]
Claude Osteen   Claude Wilson Osteen  [1957-1975]
Darrell Osteen   Milton Darrell Osteen  [1965-1970]
Bill Oster   William Charles Oster  [1954-1954]
Red Ostergard   Roy Lund Ostergard  [1921-1921]
Charlie Osterhout   Charles H. Osterhout  [1879-1879]
Fritz Ostermueller   Frederick Raymond Ostermueller  [1934-1948]
Jimmy Osting   James Michael Osting  [2001-2002]
Brian Ostrosser   Brian Leonard Ostrosser  [1973-1973]
Joe Ostrowski   Joseph Paul Ostrowski  [1948-1952]
Johnny Ostrowski   John Thaddeus Ostrowski  [1943-1950]
Al Osuna   Alfonso Osuna  [1990-1996]
Alejandro Osuna   Tadeo Alejandro Osuna  [2025-2025]
Antonio Osuna   Antonio Pedro Osuna  [1995-2005]
Jose Osuna   Jose Gregorio Osuna  [2017-2020]
Roberto Osuna   Roberto Osuna  [2015-2020]
Corey Oswalt   Corey Edward Oswalt  [2018-2021]
Roy Oswalt   Roy Edward Oswalt  [2001-2013]