The Perry River flows in the municipalities of Thetford Mines (Pontbriand sector) and Saint-Pierre-de-Broughton, in the Les Appalaches Regional County Municipality (MRC), in the administrative region of Chaudière-Appalaches, in Quebec, in Canada.

The main neighboring watersheds of the Perry River are: The Perry river has its source in the third rang, north of the village of Pontbriand in Thetford Mines and on the northern slope of the "Montagne du Trois", the summit of which is accessible by the chemin des turns.

Its confluence is located 1.3 kilometres (0.81 mi) upstream of a road bridge and 6.9 kilometres (4.3 mi) upstream of the municipal boundary of Saint-Pierre-de-Broughton and Saint-Jacques-de-Leeds.

The term "Perry" is a family surname of English origin.

The toponym "rivière Perry" was made official on {October 6, 1983 at the Commission de toponymie du Québec.