The Valdivian Coastal Range is a mountain range in southern Chile, along the Pacific coast. Named for the city of Valdivia, it covers about 1 million acres (4,000 km²) of the Valdivian temperate rain forests, approximately one-quarter of which are protected. It forms part of the larger Chilean Coast Range. The highest point of the range is Cerro Oncol with 715 m.
The region has long been geographically isolated, making it a haven for endemic species. Some of the rare species that inhabit the Valdivian Coastal Range include the Pudu (the smallest deer in the World), the Degu, the Marine Otter, and the Monito del Monte, or mountain monkey (actually a marsupial).