Marc-André Grondin (born March 11, 1984) is a Canadian actor, best known to date as "Zachary Beaulieu" in Jean-Marc Vallée's film C.R.A.Z.Y. (2005), for which he won a Jutra award for best actor. He was born in Montreal, Quebec.
Grondin is known for his work in the film Les fleurs magiques, La belle bête, 5150 Elm's Way, Che and the television series Les super mamies, Sous un ciel variable and Nos étés. Grondin received a César in 2009 for his performance as Raphael in Le Premier Jour du Reste de ta Vie directed by Rémi Bezançon.
He played "Frederic Bourdin", a French serial impostor, in the 2010 movie The Chameleon, as well as French-Canadian hockey player "Xavier LaFlamme" in Goon (2011).
In other work, Grondin has served as a judge at the 2010 Festival du Nouveau Cinéma awards.