former city, Montréal region, southern Quebec province, Canada. Until 2002 it was a northern suburb of Montreal city, at which time it was amalgamated into Montreal as a borough of that city. It lies in the northern part of Montreal Island, on the south shore of the Rivière des Prairies. A large residential and industrial area, Montréal-Nord was incorporated as a town in 1915 and grew rapidly after World War II. It became a city in 1959, retaining that status until its merger with Montreal in 2002.