Ange-Gardien is a municipality in the Canadian province of Quebec, located within the Rouville Regional County Municipality in the province's Montérégie region. The population as of the Canada 2011 Census was 2,420.It was constituted on December 31, 1997 by the amalgamation of the village municipality of L'Ange-Gardien and the parish municipality of Saint-Ange-Gardien; the former is not to be confused with two other present-day municipalities in Quebec called "L'Ange-Gardien".