Tjøtta is a former municipality in Nordland county, Norway. The 326-square-kilometre (126 sq mi) municipality existed from 1862 until its dissolution in 1965. The municipality was centered around the island of Tjøtta plus the mainland to the east and south as well as over 3000 islands, islets, and skerries to the west. The administrative centre of Tjøtta was the village of Tjøtta, located on the island of Tjøtta, where the Tjøtta Church is located.