Raundalen is a valley in Vestland county, Norway. The 25-kilometre (16 mi) long valley stretches from Uppsetedalen in the northwest corner of Ulvik municipality all the way to Urdland in central Voss municipality. The Bergen Line and County Road 307 run through the center of the valley, past the villages of Urdland, Skiple, Reimegrend, and Mjølfjell.