Bueno River (Spanish: Río Bueno) is a river in southern Chile. It originates in Ranco Lake and like most of Chile rivers it drains into the Pacific Ocean at the southern boundary of the Valdivian Coastal Reserve. Its lower flow forms the border between Osorno Province and Ranco Province. Traditionally it marks also the northern boundary of the indigenous Huilliche territory known as Futahuillimapu. The river passes through Río Bueno commune and city that takes name from the river.