Cappiello is a surname. Notable people with the surname include:
David Cappiello (born 1968), American politician Giovanni Cappiello (born 1997), Italian association football player Juan Cappiello (born 1992), Argentine rugby union player Katie Cappiello, American dramatist Leonetto Cappiello (1875–1942), Italian and French painter Rosa Cappiello (1942–2008), Italian writer Steve Cappiello (1923–2013), American police officer and politician