Newcomb is an unincorporated community in Campbell County, Tennessee, United States.
[1] It is situated in the Elk Fork Creek Valley in the Cumberland Mountains, southwest of Jellico.
Tennessee State Route 297 passes through the community.
[3] Newcomb formed in the 19th century as the location of a railroad station on the Knoxville and Ohio Railroad[4] (now part of the Southern Railway).
A post office was established in Newcomb in 1883.