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.
The 241 km2 municipality is the 291st largest by area out of the 356 municipalities in Norway. Frøya is the 176th most populous municipality in Norway with a population of 5,265. The municipality's population density is 22.9 PD/km2, and its population has increased by 20.5% over the previous 10-year period.
The parish of Frøya was established as a municipality on 1 January 1877 when it was separated from the municipality of Hitra. Its initial population was 3,949. On 1 January 1906, it was split into two municipalities: Nord-Frøya in the north and Sør-Frøya in the south. During the 1960s, there were many municipal mergers across Norway due to the work of the Schei Committee. On 1 January 1964, Nord-Frøya and Sør-Frøya were merged back together again, forming a new municipality of Frøya. On 1 January 2018, the municipality switched from the old Sør-Trøndelag county to the new Trøndelag county.
