Fauske is a town and municipality located in Nordland county, Norway. It is part of the Salten region. The administrative centre of the municipality is the town of Fauske with approximately 6,000 inhabitants.Fauske was separated from the municipality of Skjerstad on 1 January 1905. Township was declared in 1998. The town is located on the northern shore of Skjerstadfjorden. The municipality borders Sweden in the east and the municipalities of Sørfold to the north, Bodø to the west, and Saltdal to the southeast.
The municipality (originally the parish) is named after the old Fauske farm (Old Norse: Fauskar), since the first church was built there (in 1866). The name is the plural form of fauskr which means "old and rotten tree".The coat-of-arms is from modern times (1988). The arms show a reef knot to represent Fauske as a center of commerce and transportation.