William Osborne or Osborn may refer to William Osborne (umpire), National League umpire in 1876 William H. Osborne (born 1960), former president and CEO of Federal Signal Corporation William G. Osborne, respondent in District Attorney's Office v. Osborne, a U.S. Supreme Court case Will Osborne (1875–?), Wales international rugby player Qwominer William Osborne, British Virgin Islands politician William Osborn (Medal of Honor) (1837–1887), American soldier and Medal of Honor recipient William A. Osborn (born 1947), American bank executive William Church Osborn (1862–1951), New York State Democratic Committee Chairman, 1914–1916 William H. Osborn (1821–1894), American railroad tycoon Sir William Osborne, 8th Baronet (?-1783), Irish baronet and politician Bill Osborne (born 1955), New Zealand rugby union player Will Osborne (singer) (1905-1981), Canadian singer