Monasterio de Santa María de Valdediós is a 13th-century Catholic monastery near Villaviciosa of the autonomous community of the Principality of Asturias, in Spain. The monastery and town is on the coast of Biscay Bay in northern Spain.
The Spanish term Valdediós means God's valley in English.
The monastery was established on November 27, 1200. The stone buildings were built in the Spanish Gothic style
In 1522 it suffered a large flood from the Valdediós river.
Coordinates: 43°26′09″N 5°30′40″W / 43.43583°N 5.51111°W