John Williams Overton (October 10, 1894 – July 19, 1918), also known as Johnny Overton, was an American national champion track and cross-country runner who was killed in action in World War I. He was a champion track and cross-country runner at Yale University and joined the United States Marine Corps after his graduation in 1917. In track, he set the world records for the indoor mile and indoor 1,000 yard distance in 1917. He was also the college cross country champion in 1915 and 1916.