Creasey is a surname. Notable people with the surname include:
Henry Creasey (1864–1923), British sport shooter Joel Creasey (born 1990), Australian actor and comedian John Creasey (1908–1973), English crime and science fiction writer Ray Creasey (1921–1976), British aerodynamicist Timothy Creasey (1923–1986), British Army officer
See also Creasy, surname Creasey v Breachwood Motors Ltd, UK company law case concerning piercing the corporate veil