William Sharp may refer to:
William Sharp (engraver) (1749-1824), English engraver,
William Sharp (lithographer) (1803-1875), English-born lithographer and painter; lived in Boston, Massachusetts,
William Sharp (writer) (1855-1905), Scottish author and poet, pseudonym Fiona MacLeod,
William Sharp (baritone) American baritone, see Grammy Award for Best Classical Contemporary Composition,
William Graves Sharp (1859-1922) American congressman (1909-14); Ambassador to France (1914),
William Sharp (homeopath) (1805-1896), early science educator and homeopath,
William Sharp (surgeon) (1729-1810) surgeon to George III and musician,
William Sharp (scientist) American scientist and entrepreneur,
William Sharp (basketball player) (born 1984), American basketball player,
Billy Sharp (born 1986), English footballer,
Will Sharp (born 1986), English rugby league player
