Marillier is a surname. Notable people with the surname include:
Dougie Marillier (born 1978), Zimbabwean cricketer Garance Marillier (born 1998), French actress Juliet Marillier (born 1948), New Zealand-born writer of fantasy William Marillier (1832–1896), English cricketer
See also Marillier shot, a shot in cricket