Rosemère is an affluent suburb of Montreal, in southwestern Quebec, Canada on the north shore of the Rivière des Mille Îles in the Thérèse-De Blainville Regional County Municipality. The town is noted for its green look, due to the high density of trees. Some wooded areas in the town have been left intact as the town has grown around them. Homes are mostly upscale, varying from renovated cottages to unique character homes. It is almost entirely residential, with no significant industries. Boulevard Curé-Labelle, the town's main commercial artery, is lined up by suburban shops and shopping malls, the largest of which is Place Rosemère.

Greater Montreal is the most populous metropolitan area in Quebec and the second most populous in Canada after Greater Toronto. In 2015, Statistics Canada identified Montreal's Census Metropolitan Area (CMA) as 4,258.31 square kilometres (1,644.14 sq mi) with a population of 4,027,100, almost half that of the province.