Folldal is a municipality in Hedmark county, Norway. It is part of the traditional region of Østerdalen. It is bordered on the north by Oppdal and Tynset municipalities, in the east by Alvdal municipality, in the south by Stor-Elvdal, Sør-Fron and Sel municipalities, and in the west by Dovre municipality. The administrative centre of the municipality is the village of Folldal. Mining at the Folldal mines was the main industry for Folldal's residents from the 18th century until the last mine related operation in 1993. The new municipality of Folldal was separated from Alvdal in 1914.