Rousseau is a provincial electoral district in the Lanaudière and Laurentides regions of Quebec, Canada, that elects members to the National Assembly of Quebec. It notably includes the municipalities of Saint-Lin–Laurentides and Sainte-Julienne. It was created for the 1981 election from parts of the Prévost, Joliette-Montcalm and L'Assomption electoral districts. It was named after botany professor Jacques Rousseau.