Brossard is a city in the province of Quebec, Canada. It is part of the Urban agglomeration of Longueuil in the Montérégie region. It is located on the south shore of the Saint Lawrence River, opposite the city of Montreal. The population as of the Canada 2011 Census totaled 79,273, making it the sixth largest city in Greater Montreal, the thirteenth most populous city in Quebec and sixty-ninth largest in Canada.