Hey is a surname. Notable people with the surname include:
Dale Hey (1947–2012), Canadian-born American professional wrestler better known as Buddy Roberts
Donald Holroyde Hey (1904-1987), British organic chemist
Jerry Hey, American musician
Jonathan Hey (born 1979), information scientist
Tony Hey (born 1946), British computer scientist
Vic Hey (1912–1995), Australian rugby league football player
Virginia Hey (born 1962), Australian actress
William Hey (surgeon) (1736–1819), English surgeon
