Cudillero is a municipality located in the Principality of Asturias, a region in northern Spain. The area is characterized by its historical ties to both the fishing industry and local traditions.
The economy of Cudillero currently focuses on tourism while maintaining its established fishing activities. Cultural features of the municipality include the use of the Pixueto dialect by some locals alongside Castillian, as well as a local legend claiming the settlement was founded by the Vikings.