Theodore David Martin (born December 21, 1960) is a lieutenant general in the United States Army who last served as the commanding general of the United States Army Combined Arms Center, commandant of the United States Army Command and General Staff College and commanding general of Fort Leavenworth from May 2021 to October 2022. Before that, he served as the Deputy Commanding General and Chief of Staff of United States Army Training and Doctrine Command (TRADOC). A graduate of the United States Military Academy at West Point, he previously served as its 73rd Commandant of Cadets.