Gulsvik is a village in Flå Municipality, in Buskerud, Norway. Gulsvik lies at 215 m above sea level, at the foot of the Holleia mountains. The nearest city is Oslo, 73 km to the east. Among the landmarks around are Hedalen Stave Church (27 km), Flå Church (9.4 km) and Stromsoddbygda kapell (13.8 km).