Nalón is one of 8 comarcas (this is the Spanish word; the Asturian is cotarros), administrative divisions of Asturias, which is a province and an autonomous community in Spain .
The comarca of Nalón is divided into five municipalities (in Asturian conceyos). From south to north they are:
- Casu
- Sobrescobiu
- Llaviana
- Samartín del Rei Aureliu
- Llangréu
