Gulsvik

thumb|Gulvsvik Rail Station thumb|Hallingporten Gulsvik is a village in the municipality of Flå in Buskerud, Norway. It is located in Hallingdal at the north end of Lake Krøderen.

The center of the village lies at Gulsvik Rail Station. Bergensbanen railway terminated at Gulsvik Station from 1908 until the line was completed in 1909. With its location at the top of Lake Krøderen, Gulsvik was a key port on the lake. When the ferry over Lake Krøderen was established, Gulsvik became the natural port on the northern side, with accommodations for tourism.