The Trois Pistoles River is a river in Quebec that discharges into the St. Lawrence River. It originates in Lac des Trois-Pistoles, flowing westward from Sainte-Rita in Les Basques Regional County Municipality to Saint-Cyprien in Rivière-du-Loup Regional County Municipality, then northwest into Les Basques again at Saint-Jean-de-Dieu and continuing through Saint-Clément, Saint-Éloi, Sainte-Françoise, and Notre-Dame-des-Neiges until reaching the south coast of the St. Lawrence River.[1]
Samuel de Champlain recorded this river as "Rivière des Sauvages" or "Rivière de l'île Verte" in Voyages de la Nouvelle-France, published in 1632.[2]