The Rivière des Marsouins is a river on the Indian Ocean island of Réunion, which is an overseas department and region of France. The river is 32.3 km (20.1 mi) long.[1] It flows northeast from the center of the island, reaching the sea close to the town of Saint-Benoit. The Rivière des Roches follows a largely parallel course, reaching the sea three kilometres to the north.
