Teigen is an unincorporated community in western Petroleum County, Montana, United States. It lies along Highway 200 west of the town of Winnett, the county seat of Petroleum County. Its elevation is 3,192 feet (973 m). Teigen's post office opened on November 24, 1914. Although the post office was closed on December 21, 1983, the community still has a separate ZIP code of 59084.
According to the Köppen Climate Classification system, Teigen has a semi-arid climate, abbreviated "BSk" on climate maps.