Tennessee's 12th congressional district was a district of the United States Congress in Tennessee. It was lost to redistricting in 1843. Its last Representative was Milton Brown.

• Martis, Kenneth C. (1989). The Historical Atlas of Political Parties in the United States Congress. New York: Macmillan Publishing Company.
• Martis, Kenneth C. (1982). The Historical Atlas of United States Congressional Districts. New York: Macmillan Publishing Company.
• Congressional Biographical Directory of the United States 1774–present