Tydal is a municipality in Trøndelag county, Norway. The administrative centre of the municipality is the village of Ås. Other villages include Østby, Gressli, Aunet, and Stugudalen. There is a school and a kindergarten in Tydal.

Trøndelag (Urban East Norwegian: [ˈtrœ̂ndəˌlɑːɡ]; or Trööndelage  is a county and coextensive with the Trøndelag region in the central part of Norway. It was created in 1687, then named Trondhjem County ; in 1804 the county was split into Nord-Trøndelag and Sør-Trøndelag by the King of Denmark-Norway, and the counties were reunited in 2018 after a vote of the two counties in 2016.