The Blanche River (in French: rivière Blanche) is a tributary of the Bulstrode River whose current flows successively into the Nicolet River and St. Lawrence River.

The Blanche river flows in the town of Victoriaville and in the municipality of Saint-Valère, in the Arthabaska Regional County Municipality (MRC), in the administrative region of Centre-du-Québec, in province of Quebec, in Canada.

The neighboring geographic slopes of the Blanche River are: The Blanche river takes its source from various agricultural streams, in an agricultural zone of the Courtois range, located north of the hamlet "Place-Béréli", north-east of Saint-Albert, southwest of the town of Victoriaville and north of the Nicolet River.

From its head area, the river flows on 9.2 kilometres (5.7 mi) in the following segments: The Blanche river flows on the south bank of the Bulstrode River, in front of the village of Saint-Valère and downstream of Victoriaville.

The toponym "rivière Blanche" was made official on July 4, 1980, at the Commission de toponymie du Québec.