Samnanger is a municipality in the Midhordland region of Hordaland county, Norway. The administrative centre of the municipality is the village of Tysse. Other main villages in the municipality include Haga and Bjørkheim in Nordbygda. The municipality is located about east of the city of Bergen, Norway's second largest city. It surrounds the inner part of the Samnangerfjorden and the surrounding valleys. There are mountains that surround the municipality. The development of hydroelectric power plants started here in 1909.