The Mascouche River is a river flowing in the municipality of Terrebonne, in Les Moulins Regional County Municipality (RCM), in the administrative region of Lanaudière, in Quebec, in Canada.

Course of the river Mascouche River rises in the area east slopes of Mirabel airport, draining various streams: Ouellet, Gascon-Forget, Cardinal Lapointe, Desjardins Hogue-Therrien and Saint Pierre River (Mirabel).

Variations: St. Marys River and Rivière Saint-Jean-Baptiste.

[1] The place name "Mascouche River" was formalized December 5, 1968, at the Bank of place names of Commission de toponymie du Québec (Quebec Geographical Names Board).

[2] Media related to Category: Mascouche River at Wikimedia Commons Download coordinates as: