Austevoll is a municipality and an archipelago in Vestland county, Norway. It is located in the traditional district of Midthordland in Western Norway. The administrative centre is the village of Storebø on the island of Huftarøy. Other villages include Årland, Austevollshella, Bakkasund, Bekkjarvik, Birkeland, Haukanes, Husavik, Kolbeinsvik, Otterå, Våge, and Vinnes.

The municipality consists of hundreds of islands located southwest of the city of Bergen. The municipality is considered to be among the ports in the world with the largest ocean-going fishing trawler fleet. Since the 1980s, the offshore oil industry and fish farming industry have both grown to be important industries in Austevoll.

The 117-square-kilometre (45 sq mi) municipality is the 323rd largest by area out of the 356 municipalities in Norway. Austevoll is the 177th most populous municipality in Norway with a population of 5,297. The municipality's population density is 46.4 inhabitants per square kilometre (120/sq mi) and its population has increased by 9.5% over the previous 10-year period.

The municipality of Austevoll was established on 1 January 1886 when it was separated from the municipality of Sund. The initial population for the new municipality of Austevoll was 2,396.

During the 1960s, there were many municipal mergers across Norway due to the work of the Schei Committee. On 1 January 1964, the southern part of the islands of Selbjørn and Huftarøy (population: 696) was transferred from Fitjar Municipality to Austevoll. This put the whole Austevoll archipelago in the municipality of Austevoll.

The municipality (originally the parish) is named after the old Austevoll farm (Old Norse: Austrvǫllr) since the first Austevoll Church was built there. The farm is now part of the village of Austevollshella. The first element is austr which means "east". The last element is vǫllr which means "meadow" or "field". The municipality has changed the spelling of its name three times. Historically, the name of the municipality was spelled Østervold or Østevold. In 1889, the spelling was changed to Austevold. On 3 November 1917, a royal resolution changed the spelling of the name of the municipality to Austevoll.

The coat of arms was granted on 30 November 1984. The official blazon is "Azure, four herrings argent in bend 1-2-1" (Norwegian: På blå bunn fire kvite silder på skrå oppover, 1-2-1). This means the arms have a blue field (background) and the charge is a set of four herring swimming diagonally up to the left. The charg has a tincture of argent which means it is commonly colored white, but if it is made out of metal, then silver is used. The shoal of herring was chosen for the arms since herring fishing is a very important part of the local economy. The arms were designed by John Digernes. The municipal flag has the same design as the coat of arms.

The Church of Norway has one parish (sokn) within the municipality of Austevoll. It is part of the Fana prosti (deanery) in the Diocese of Bjørgvin.