Scalia is an Italian surname. Notable people with the surname include:
Antonin Scalia (1936–2016), American judge Daniela Scalia (born 1975), Italian television journalist and presenter Eugene Scalia (born 1963), U.S. Secretary of Labor, son of Antonin Scalia Jack Scalia (born 1950), American actor Jimmy Scalia (born 1960), American record producer Liz Scalia, British-Italian cyclist Pietro Scalia (born 1960), Italian-American film editor Silvia Scalia (born 1995), Italian swimmer Vito Scalia (1925–2009), Italian politician