Frøya is the westernmost municipality in Sør-Trøndelag county, Norway. It is part of the Fosen region and it consists of the island of Frøya which lies north of Hitra, as well several thousand other small islands surrounding the island of Frøya. The village of Sistranda is the administrative center of Frøya. Other villages include Hammarvika, Titran, Sula, and Mausund. The main island of Frøya is connected to neighboring Hitra (and ultimately the mainland of Norway) by the Frøya Tunnel which goes under the Frøyfjorden.