Buvik is a former municipality in the old Sør-Trøndelag county, Norway. Buvik existed from 1855 until 1965. The municipality encompassed the extreme northeastern part of what is now the municipality of Skaun in Trøndelag county. It encompassed the roughly 25-square-kilometre (9.7 sq mi) area surrounding the Vigda river south of the Gaulosen fjord. The administrative centre was located in the village of Buvika.

Skaun is a municipality in Trøndelag county, Norway. It is part of the Orkdalen region. The administrative centre of the municipality is the village of Børsa. Other villages include Buvika, Eggkleiva, Melby, Skaun, and Viggja.