William Conway

William, Bill, or Billy Conway may refer to:


 * William Conway (Arkansas judge) (1805–1852), Justice of the Arkansas Supreme Court
 * William Conway (cardinal) (1913–1977), Irish cardinal of the Roman Catholic Church
 * William Conway (Irish republican) (1902–1979), one of three Irish Republicans convicted of murder for events of the 1920 Bloody Sunday
 * William Conway (United States Navy) (1802–1865), American sailor
 * William A. Conway (actor) (1789–1828), English-born American actor
 * William A. Conway (banker) (1910–2006), American banker
 * William B. Conway (1802–1839), American lawyer and Secretary of Iowa Territory
 * William C. Conway (1865–1969), American leader of a mystical Latter Day Saint sect
 * William E. Conway Jr. (born 1949), American founder of the Carlyle Group, former CFO of MCI Communications
 * William G. Conway (1929–2021), American zoologist
 * Martin Conway, 1st Baron Conway of Allington (William Martin Conway, 1856–1937), English mountaineer, cartographer, art critic and politician
 * Bill Conway (baseball) (William F. Conway, 1861–1943), American Major League Baseball player
 * Bill Conway, American singer with The Modernaires
 * Bill Conway (politician), member-elect of the Chicago City Council
 * Billy Conway (born 1967), English rugby league footballer
 * Billy Conway (drummer), member of Treat Her Right and Morphine
 * Billy Conway, a character in Accidents Happen