Retallick is a surname originating in Cornwall, England. Notable people surnamed Retallick include:
Katrina Retallick, Australian actress Culum Retallick (born 1985), New Zealand rugby player, plays for Bay of Plenty and Blues Brodie Retallick (born 1991), New Zealand rugby player, plays for Bay of Plenty, Chiefs and New Zealand
See also , a ship in Britain's Royal Navy Retallack (disambiguation)