The rivière Saumon (English: Salmon River) is a watercourse flowing southwest by crossing only the territory of the municipality of Notre-Dame-de-Bonsecours, in the Papineau Regional County Municipality, in the administrative region of Outaouais, in Quebec, in Canada.

The mouth of Papineau Lake is on the south side of a bay 1.0 km (0.62 mi) long.

Formerly, this watercourse was designated the Kinonge River, a hydronym of Amerindian origin of the Algonquin nation meaning 'pike'.

The toponym Kinonge River is indicated on the map of the seigniory of La Petite-Nation, dated 1854 or 1855, in the form of the River Kinonge or Saumon and also on the map of the seigniory of La Petite-Nation of 1887, in the form of Salmon River or Kinongé.

The toponym Rivière Saumon was formalized on November 3, 1983, at the Place Names Bank of the Commission de toponymie du Québec.