Hitra is a municipality in Trøndelag county, Norway. The municipality covers the island of Hitra and hundreds smaller islands, islets, and skerries. It is part of the Fosen region. The administrative centre of the municipality is the village of Fillan. Other villages include Andersskogan, Ansnes, Forsnes, Hestvika, Knarrlagsund, Kvenvær, Melandsjøen, Nordbotn, Sandstad, and Ulvan.
Frøya is the westernmost municipality in Trøndelag county, Norway. It is part of the Fosen region and consists of the island of Frøya, which lies north of the island 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 the neighboring island of Hitra (and ultimately the mainland of Norway) by the Frøya Tunnel which goes under the Frøyfjorden.