William Sullivan may refer to: Government William J. Sullivan (born 1939), American judge on the Connecticut Supreme Court William H. Sullivan (1922–2013), United States diplomat William Sullivan (Kentucky politician) (1921–2013), Kentucky state senator William C. Sullivan (1912–1977), former head of the Federal Bureau of Investigation's intelligence operations William T. Sullivan (1894–1968), Wisconsin state representative Sir Bill Sullivan (politician) (1891–1967), New Zealand minister of labour William P. Sullivan (1870–1925), Missouri state representative William Wilfred Sullivan (1839–1920), premier of Prince Edward Island William V. Sullivan (1857–1918), United States senator from Mississippi William F. Sullivan, associate justice for the Massachusetts Superior Court Sports William Sullivan (cricketer) (1877-1924), Australian cricketer William Sullivan (field hockey) (1909–1981), Indian field hockey player Bill Sullivan (outfielder) (1853–1884), Irish baseball player Bill Sullivan (pitcher) (1868–1905), baseball player for the Syracuse Stars Billy Sullivan (American football) (1915–1998), owner of an original franchise, the Boston Patriots, of the American Football League Billy Sullivan (baseball) (1875–1965), major league catcher Billy Sullivan Jr. (1910–1994), his son, baseball catcher William Sullivan (pitcher) (1864–1911), baseball player for the St. Louis Maroons Others William John Sullivan (born 1976), software freedom activist, hacker, and writer William Laurence Sullivan (1872–1935), Unitarian clergyman and author William L. Sullivan (author) (born 1953), American author William D. Sullivan, United States Navy officer William Matheus Sullivan (1885–1947), American lawyer and art patron William Holmes Sullivan (1836–1908), British painter William N. Sullivan (1908–1979), American entomologist William Kirby Sullivan (1822–1890), Irish philologist Billy Sullivan (actor) (1891–1946), American character actor William "Rocky" Sullivan, character in Angels with Dirty Faces Bill Sullivan (artist) (1942–2010), American painter, printmaker and publisher See also William O'Sullivan (disambiguation)