Guy Dufaux (in French pronounced as /gi dyfo/; born July 18, 1943, in Lille, France) is a French-born Canadian cinematographer. The majority of his works have been in Canadian cinema; he immigrated to Canada in 1965 and became a Canadian citizen in 1971. He is also the father of Montréal-based sculptor Pascal Dufaux and the brother of the late Canadian documentary filmmaker, Georges Dufaux.