The Thirteenth Tennessee Cavalry (U.S.), also known as the Fourteenth Tennessee Cavalry (U.S.) and Bradford's Battalion, was a regiment of the United States Army during the American Civil War. The Thirteenth was composed primarily of white, pro-Union soldiers from western Tennessee. Many had even fought for the Confederacy earlier in the war. The Thirteenth was assigned to Fort Pillow in 1864. They were under the command of Major Bill Bradford, and played a role in the Battle of Fort Pillow.