Numedal (Norwegian: [ˈnʉ̀ːmədɑːɫ]) is a valley and a traditional district in Eastern Norway located within the county of Buskerud.

Agriculture and forestry are important industries in the valley along with hydropower generation, as well as growing tourist traffic.

[1][6] The area along the Numedalslågen from Flesberg up to the Hardangervidda through the valley has a large number of examples of Medieval Scandinavian architecture.

On the marked paths, remains of Stone Age dwelling places, bog iron works and grave mounds can be seen.

[11][12][13] Numedal has a subarctic climate (Dfc) with short, mild, and wet summers with cool nights and long, cold, and snowy winters.