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.
Brossard is the most ethnically diverse municipality in Quebec. In 2006, 23 different ethnic groups had at least a one percent share of the city's population. More than a third of the population are first generation immigrants. It has the highest proportion of immigrants in Quebec outside the Island of Montreal. Brossard is home to the largest concentration of Chinese immigrants in Quebec.