Grini is a village in Notodden Municipality, in Telemark, Norway. Grini lies at 79 m above sea level, in the Lifjell mountains. The nearest city is Kongsberg, 31 km to the east. Among the landmarks around are Heddal Stave Church (2.5 km), Old Bø Church (19.7 km) and Lisleherad Church (8.2 km). Among the natural features are Liafoss (7.2 km).