John Wesley Frazer (January 6, 1827 – March 16, 1906) was an American soldier, planter, and businessman. He was a career officer in the United States Army, and then served as a Confederate general during the American Civil War. Frazer's most notable action during the Civil War was when he surrendered the Cumberland Gap and was captured in the autumn of 1863. He was held as a prisoner of war until after hostilities ended in the spring of 1865, and then took up work in farming and business.