Dundee is a township municipality in Le Haut-Saint-Laurent Regional County Municipality in the Montérégie administrative region of Quebec, Canada. At the 2021 Canadian census, the population was 386. It is primarily an agricultural area consisting of dairy and grain farms.

The Mohawk Nation at Akwesasne is a Mohawk Nation (Kanienʼkehá:ka) territory that straddles the intersection of international borders and provincial boundaries on both banks of the St. Lawrence River. Although divided by an international border, the residents consider themselves to be one community. They maintain separate police forces due to jurisdictional issues and national laws.