Heddal is a settlement in Notodden Municipality, in Telemark, Norway. Heddal lies in the Blefjell mountains. The nearest city is Kongsberg, 29 km to the east. Among the landmarks around are Heddal Stave Church (0.6 km), Old Bø Church (20 km) and Lisleherad Church (6.6 km). Among the natural features are Liafoss (5.3 km) and Labrofossen (29 km).