Jølster is a former municipality in Sogn og Fjordane county, Norway. It was located in the traditional district of Sunnfjord. The administrative centre was the village of Skei. Other villages in the municipality included Helgheim, Ålhus, Vassenden, and Langhaugane.

Sogn og Fjordane was, up to 1 January 2020, a county in western Norway, when it was merged to become part of Vestland county. Bordering previous counties Møre og Romsdal, Oppland, Buskerud, and Hordaland, the county administration was in the village of Hermansverk in Leikanger municipality. The largest town in the county was Førde.