William Evans (1853 – November 26, 1893) was an Irish-born soldier in the U.S. Army who served with the 7th U.S. Infantry during the Black Hills War. He participated in campaigns against the Sioux in the Montana Territory and, at Big Horn from July 9–14, 1876, volunteered to deliver critical dispatches between Generals George Crook and Alfred Terry. He later received the Medal of Honor for his heroic actions.