Borgund is a former municipality in Møre og Romsdal county, Norway. The municipality existed from 1837 until 1968 when it was merged into Ålesund Municipality. Borgund originally encompassed the large area north of the Storfjorden and south of the Grytafjorden, from the mainland areas of today's Skodje Municipality in the east to the islands of today's Giske Municipality and the ocean in the west. The city of Ålesund was located in the central part of Borgund, however, was not part of Borgund, and it was governed separately. At its dissolution in 1968, the 172.93-square-kilometre (66.77 sq mi) municipality included the islands of Sula, Humla, Tørla, and Ellingsøya, as well as parts of Oksenøya, Hessa, and Nørvøya, plus many minor islands throughout the area.^[2] The main church for the municipality was Borgund Church, located at Borgund (on the western tip of Oksenøya). The administrative centre of the municipality was at Borgund, near the church, along the Nørvasundet strait.

The municipality of Borgund was established on 1 January 1838 (see formannskapsdistrikt law). According to the 1835 census, the municipality had a population of 3,754.^[3] In 1849, the eastern district of Borgund including the mainland part of Borgund and the eastern part of Oksenøya island was separated from Borgund to become Skodje Municipality. This left Borgund with 4,461 inhabitants. On 1 January 1908, the islands of Giske, Godøya, and Valderøya in western Borgund were separated from the municipality to become the new Giske Municipality. Borgund then had a population of 6,734. On 1 January 1916, a small part of Skodje Municipality (population: 14) was transferred to Borgund Municipality. Also on 1 July 1958, a small part of Hareid Municipality on the island of Sula, with 68 inhabitants, was transferred to Borgund Municipality.^[4]

During the 1960s, there were many municipal mergers across Norway due to the work of the Schei Committee. On 1 January 1965, the northern part of Borgund Municipality (including the Gamlem, Søvik, and Grytastranda areas on the mainland and the islands of Bjørnøya, Terøya and many small islands around them) with 1,191 inhabitants, was administratively transferred into the neighboring Haram Municipality to the north.^[4]

While it existed, this municipality was responsible for primary education (through 10th grade), outpatient health services, senior citizen services, unemployment, social services, zoning, economic development, and municipal roads. During its existence, this municipality was governed by a municipal council of directly elected representatives. The mayor was indirectly elected by a vote of the municipal council.^[7]

• List of former municipalities of Norway