The Petite-Nation River is a river in western Quebec, Canada, that flows from the Laurentian Mountains to empty into the Ottawa River near Plaisance, Quebec. The river is 97 kilometres in length.
This river's French name refers to the Algonquin people that inhabited this region, the Weskarini, which means "people of the little nation". The valley of the Petite-Nation was part of the Seigneury de la Petite-Nation, originally owned by the Lord François de Laval, the first archbishop of New France. Joseph Papineau acquires it from Séminaire de Québec in two parts, in 1801 and 1803. Joseph Papineau sells the seigneury to his son, Louis-Joseph Papineau, in 1817. Denis-Benjamin, Joseph's second son, is the lord of the seigneury. In 1929, the Papineau domain was sold off and became the Seigniory Club, which in turn later was acquired by Canadian Pacific hotels, now known as Fairmont.
Coordinates 45°49'17.331" N -75°4'33.708" E