Edward Johnston (February 8, 1844 – January 20, 1920) was an American soldier in the U.S. Army who served with the 5th U.S. Cavalry during the Indian Wars. He was one of thirty-one men received the Medal of Honor for gallantry during General Nelson A. Miles winter campaign against the Sioux in the Montana Territory from October 21, 1876, to January 8, 1877.