Piloña is a municipality in the province and autonomous community of Asturias, northwestern Spain. Its capital is the town of Infiesto. Piloña is bounded to the north by Villaviciosa and Colunga, to the east by Parres, to the west by Nava and Cabranes, and to the south by Ponga, Caso, Sobrescobio and Laviana. The area is semi-mountainous with many small, but deep and narrow valleys.