Page Notes  
Major Leaguers whose last name begin with OS. Only active players are listed in the first grid with historical players listed in full (including active) in the 2nd grid.

For the full player listing, an ACTIVE player (in bold) is based on his last active year as a pro which could be in the minors or overseas. Its an indicator that the player is still known to be playing ball at the pro level.

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'OS' Full Player Listing

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  • Grid Filters
  • Drafted
  • 1st Round Pick
  • Hitters
  • pitchers
  • 'O'S' Players
    Player NamePosProper NameMLB YearsYears Count
    Sean O'SullivanPSean Daniel O'Sullivan2009-20168
    'OSB' Players
    Player NamePosProper NameMLB YearsYears Count
    Bob OsbornPJohn Bode Osborn1925-19317
    Fred OsbornOF-1BWilfred Pearl Osborn1907-19093
    Ozzie OsbornPDaniel Leon Osborn1975-19751
    Bobo Osborne1B-3BLawrence Sidney Osborne1957-19637
    Donovan OsbornePDonovan Alan Osborne1992-200413
    Tiny OsbornePEarnest Preston Osborne1922-19254
    Wayne OsbornePWayne Harold Osborne1935-19362
    Pat OsburnPLarry Patrick Osburn1974-19752
    'OSG' Players
    Player NamePosProper NameMLB YearsYears Count
    Charlie OsgoodPCharles Benjamin Osgood1944-19441
    'OSI' Players
    Player NamePosProper NameMLB YearsYears Count
    Josh OsichPJoshua Michael Osich2015-20206
    Keith OsikC-3BKeith Richard Osik1996-200510
    Dan OsinskiPDaniel Osinski1962-19709
    'OSO' Players
    Player NamePosProper NameMLB YearsYears Count
    Franquelis OsoriaPFranquelis Antonio Osoria2005-20084
    'OST' Players
    Player NamePosProper NameMLB YearsYears Count
    Harry OstdiekCHenry Girard Ostdiek1904-19085
    Champ OsteenSS-3BJames Champlin Osteen1903-19097
    Claude OsteenP-OFClaude Wilson Osteen Jr.1957-197519
    Darrell OsteenPMilton Darrell Osteen1965-19706
    Bill OsterPWilliam Charles Oster1954-19541
    Red OstergardHRoy Lund Ostergard1921-19211
    Fritz OstermuellerPFrederick Raymond Ostermueller1934-194815
    Jimmy OstingPJames Michael Osting2001-20022
    Brian OstrosserSSBrian Leonard Ostrosser1973-19731
    Joe OstrowskiPJoseph Paul Ostrowski1948-19525
    Johnny OstrowskiOF-3BJohn Thaddeus Ostrowski1943-19508
    'OSU' Players
    Player NamePosProper NameMLB YearsYears Count
    Al OsunaPAlfonso Osuna Jr.1990-19967
    Antonio OsunaPAntonio Pedro Osuna1995-200511
    Jose Osuna3B-1BJose Gregorio Osuna2017-20204
    Roberto OsunaPRoberto Osuna2015-20206
    'OSW' Players
    Player NamePosProper NameMLB YearsYears Count
    Corey OswaltPCorey Edward Oswalt2018-20203
    Roy OswaltP-LFRoy Edward Oswalt2001-201313
    31 record(s)
    Glossary:
    Player Name Name of the player. If not linked, then no profile on the site Pos Defensive Position Proper Name Given name, if available MLB Years Up-to-date Range of Years played