Steinkjer is a municipality in Trøndelag county, Norway. It is part of the Innherad region. The administrative centre of the municipality is the town of Steinkjer which is located on the inner part of the Trondheimsfjord. The town is also the administrative centre for Trøndelag county. Other populated areas in Steinkjer include the villages of Ogndal, Hyllbrua, Gaulstad, Beitstad, Bartnes, Vellamelen, Stod, Binde, Sunnan, Byafossen, Følling, Kvam, Lerkehaug, Mære, Sparbu, Vassaunet, Vekre, Malm, Follafoss, Sela, and Verrastranda.

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.