Austafjord[2] is a small village in Nærøysund Municipality in Trøndelag county, Norway.

It is located on the island of Ytter-Vikna, approximately 30 kilometres (19 mi) west of the municipal center, Rørvik.

Austafjord sits about half-way between the nearby villages of Garstad and Valøya.

Austafjord has a population of about 60, as well as a shop, a post office, a school, and a day-care center.

Austafjord is the western terminus of Norwegian County Road 770.