Gratien Gélinas (December 8, 1909 – March 16, 1999) was a Canadian writer, playwright, actor, director, producer and administrator who is considered one of the founders of modern Canadian theatre and film. His major works include Tit-Coq (1948), Bousille et les Justes (1959), and Hier, les enfants dansaient (1968).

He also wrote a series of satirical revues known as the Fridolinades. The Fridolinades revues, consisting of comic sketches, songs, and monologues, were named for the often-featured character Fridolin. A poor boy from Montreal, he wore a tri-colour Canadiens hockey jersey, knee socks, and suspenders.