The Dark-bellied Cinclodes (Cinclodes patagonicus) is a species of bird in the Furnariidae family. It is found in Argentina and Chile. Its natural habitats are rivers and rocky shores. The Dark-bellied Cinclodes is distributed in Chile from about Santiago southwards to Tierra del Fuego and in adjacent areas of extreme western Argentina. It is found near streams, lakes and marshlands from sea level up to 2,500 m. It has a bold white supercilium and throat.