The Rivière des Roches is a tributary of the northwest shore of the Saint Lawrence river, flowing in the municipality of Saint-Augustin-de-Desmaures, in the Portneuf Regional County Municipality, in the administrative region of Capitale-Nationale, in the province of Quebec, in Canada.

The water level of the river varies with the seasons and the precipitation; the spring flood occurs in March or April.

The Roches river has its source in a forest area in Saint-Augustin-de-Desmaures, almost at the limit of Neuville, north of the village of Saint-Nicolas.

[2] The toponym "Rivière des Roches" originates from the habit of residents of the area to designate it because of its rocky bed, just like sixty other similar entities across Quebec.

The toponym "Rivière des Roches" was formalized on December 5, 1968 at the Commission de toponymie du Québec.