Bergenhus is a borough of the city of Bergen in Vestland county, Norway. This borough encompasses the city centre and is the most urbanized area of the whole city. The 25.41-square-kilometre (6,280-acre) borough has a population (2014) of 40,606. This gives Bergenhus a population density of 1,598 inhabitants per square kilometre (4,140/sq mi).
In May 2025, the population was 294,029, according to Statistics Norway. The municipality covers 465 square kilometres (180 sq mi) and is on the peninsula of Bergenshalvøyen. The city centre and northern neighbourhoods are on Byfjorden, 'the city fjord'. The city is surrounded by mountains, causing Bergen to be called the "city of seven mountains". Many of the extra-municipal suburbs are on islands. Bergen is the administrative centre of Vestland county. The city consists of eight boroughs: Arna, Bergenhus, Fana, Fyllingsdalen, Laksevåg, Ytrebygda, Årstad, and Åsane.
Årstad is a borough in the city of Bergen in Vestland county, Norway. Historically, the area was a separate municipality called Årstad until 1916, when it was merged into the city of Bergen. The borough has similar (but not the same) boundaries to those of the old municipality.