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 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