Åsen is a former municipality in the old Nord-Trøndelag county, Norway. The 140-square-kilometre (54 sq mi) municipality existed from 1838 until its dissolution in 1962. The municipality was located to the southwest part of what is now Levanger municipality in Trøndelag county, roughly bordered in the north by the lakes Hammervatnet and Hoklingen, and by the Åsenfjorden to the west. The administrative centre was the village of Åsen.