Eiddal is a village in Sigdal Municipality, in Buskerud, Norway. Eiddal lies at 140 m above sea level, in the Holleia mountains. The nearest city is Kongsberg, 46 km to the south. Among the landmarks around are Blaafarveværket (28 km), Rollag Stave Church (15.4 km) and Holmen Church (7.1 km). Among the natural features are Borofjell (7.8 km).

Also written Eidal.