Ullensvang is a municipality in the county of Hordaland, Norway. It is located in the traditional district of Hardanger. The administrative centre is the village of Kinsarvik.
The number of inhabitants has shown a decrease of some 500 between 1980 and 2004. This development can be seen in light of the general depopulation of rural Norway. The major part of Ullensvang is located near the Hardangervidda National Park, Europe's biggest mountain plateau (highest point, Haarteigen, 1,690 meters above sea level). The general population, however, is confined to the narrow mountainsides and valleys along the Hardangerfjord especially in the rural centers of Kinsarvik (administrative center) and Lofthus.