Grandas de Salime is a municipality in the Autonomous Community of the Principality of Asturias, Spain. It is famous for its hydroelectric dam across the Navia River, forming the Embalse de Salime (reservoir of Salime). It is also famous for being a stop along the Camino de Santiago, where it is the last stretch of Asturian land before the entrance into Galicia through the Acebo Pass.
The municipality is situated in the interior of the eastern region of Asturias, bordered on the south by the Galician province of Lugo, on the north by the Asturian municipalities of Santa Eulalia de Oscos, San Martín de Oscos, Pesoz and Allande. The village has an ethnographic museum which occupies the former governing house of Grandas. Geologically, the region is dominated by deposits of shale and quartzite.
The hydroelectric dam turned 50 years old in 2004. Its inside is adorned with a large mural by the architect of the dam, Joaquin Vaquero Palacios.