The Blanche River (in French: Rivière Blanche) flows in the administrative region of Chaudière-Appalaches, in the province of Quebec, in Canada, in the regional county municipality of: The Blanche River is a tributary of the north shore of Etchemin River which flows toward north and empties on the shore into the St. Lawrence River, in front of Quebec.

[1] The main neighboring watersheds of the Blanche river are: The Blanche river has its source in the Massif du Sud, in the Notre Dame Mountains, in the municipality of Saint-Luc-de-Bellechasse.

This spring is located 10.4 kilometres (6.5 mi) south of the center of the village of Saint-Philémon and 3.1 kilometres (1.9 mi) south-east of the summit of mont du Midi.

The confluence of the Blanche river is located upstream of the confluence of the Bourget river and 4.8 kilometres (3.0 mi) east of the center of the village of Saint-Luc-de-Bellechasse.

[2] The toponym Rivière Blanche was formalized on 18 July 1973 at the Commission de toponymie du Québec.