Høyanger is a municipality in the county of Sogn og Fjordane, Norway. It is located in the traditional district of Sogn. The administrative center is the village of Høyanger, which has 2177 inhabitants (2009). Other villages in Høyanger include Lavik, Kyrkjebø, Austreim, and Vadheim. Høyanger was created on 1 January 1964 when the municipalities of Kyrkjebø and Lavik were merged.
Høyanger is known for being one of the first industrial towns in Norway to use its steep mountains surrounding the town giving excellent conditions for producing hydroelectricity needed for electrolysis. The main product being produced in Høyanger was aluminium.