Saint-Lambert is a city in southwestern Quebec, Canada, located on the south shore of the St. Lawrence River, opposite Montreal. It is part of the Urban agglomeration of Longueuil of the Montérégie administrative region. Saint-Lambert is divided into two main sections: the original city of Saint-Lambert and the Préville neighbourhood. The original city of Saint-Lambert is located from the Country Club of Montreal golf course to the border of the Le Vieux-Longueuil borough.