Colonel Cornelius Cole Smith (April 7, 1869 – January 10, 1936) was an American officer in the U.S. Army who served with the 6th U.S. Cavalry during the Sioux Wars. On January 1, 1891, he and four other cavalry troopers successfully defended a U.S. Army supply train from a force of 300 Sioux warriors at the White River in South Dakota, for which he received the Medal of Honor.