Tuñón (43°17′00″N 5°58′00″W / 43.28333°N 5.966667°W) is a parish in Santo Adriano, a municipality within the province and autonomous community of Asturias, in northern Spain.
It is 11.29 km2 (4.36 sq mi) in size. The population is 76 (2006). The postal code is 33115.
This parish has several villages:
Feast days include: