Châteauguay is a provincial riding (electoral district) in the Montérégie region of Quebec, Canada, that elects members to the National Assembly of Quebec.

It was originally created in 1867 (and an electoral district of that name existed earlier in the Legislative Assembly of the Province of Canada).

It disappeared in the 1939 and its successor electoral district was Châteauguay-Laprairie.

Coalition Avenir change is from Action démocratique

* Result compared to UFP 2Johnson is split between Centre-du-Québec and MontérégieSee also: