Caleta Chaihuín (Chaihuín) is a coastal hamlet and rural district in the commune of Corral, Los Ríos Region, Chile. It lies at the mouth of Chaihuín River that flows from the Valdivian Coast Range to the Pacific Ocean. Silt from the river combined with the prevailing coastal current have formed a barrier-bar across the cove creating an estuary. The administration and main entrance to the Valdivian Coastal Reserve lies in Chaihuín.