Un gars, une fille (French pronunciation: [œ̃ ɡɑ yn fij], A Guy, A Girl) is a Canadian comedy television series created by and starring Guy A. Lepage and broadcast on Radio-Canada, as well as the title of its French adaptation on France 2. It was one of the most successful television shows in the province of Quebec, with a concept exported to more than thirty markets around the world. It was the first French-language Canadian television programme to be adapted in the United States.

The show spawned several international versions, most notably a French TV series of the same name, which characters appeared in a 1999 episode of the original series, "À Paris".