Grorud is a village in Siljan Municipality, in Telemark, Norway. Grorud lies at 437 m above sea level, 2.3 km from the Scandinavian mountains. The nearest city is Porsgrunn/Skien, 29 km to the south. Among the landmarks around are Gjerpen Church (20 km), Skien Church (22 km) and Heddal Stave Church (36 km). Among the natural features are Rauberflaket (4.1 km) and Kolsflaket (4.3 km).