C.R.A.Z.Y. is a 2005 Canadian coming-of-age drama film directed by Jean-Marc Vallée and co-written by Vallée and François Boulay. It tells the story of Zac, a young gay man dealing with homophobia while growing up with four brothers and his father in Quebec during the 1960s and 1970s. The film employs an extensive soundtrack, featuring artists such as David Bowie, Pink Floyd, Patsy Cline, Charles Aznavour, and The Rolling Stones.

A popular piece in the Cinema of Quebec, C.R.A.Z.Y. was one of the highest-grossing films of the year in the province. The film won numerous honours, among them 11 Genie Awards, including Best Motion Picture. At Quebec's Prix Jutra film awards, it won 13 awards in the competitive categories from 14 nominations, becoming the all-time record holder for most award wins at that ceremony; it also won both of the box-office based awards, the Billet d'or and the Film s'étant le plus illustré à l'extérieur du Québec, for a total of 15 awards overall.

C.R.A.Z.Y. was submitted for consideration for the Academy Award for Best Foreign Language Film, but was not nominated.

In 2015, Toronto International Film Festival critics ranked it among the Top 10 Canadian Films of All Time.