Forbus is an unincorporated community located on U.S. Route 127 in Fentress County, Tennessee. Considered a crossroads community, it is listed on the National Register of Historic Places as an historic district called the Forbus Historic District. In 1991 it consisted of a general store, one house, and some outbuildings.Early names for the community were Blue Rock and Gatewood. In the mid-19th century, the community was briefly home to a school known as the Van Buren Institute.