Carignan is a suburban municipality in southwestern Quebec, Canada, on the Richelieu River in La Vallée-du-Richelieu Regional County Municipality, about 27 km from Montreal. The population as of the Canada 2021 Census was 11,740. Carignan was originally the Village Municipality of Chambly. The village of Chambly was established in 1855, less than 10 years after the municipality of Chambly. In 1965 it was renamed Carignan to honour the Carignan-Salières Regiment.