William Myron Keck (April 27, 1880 – August 20, 1964) was an American oil entrepreneur and philanthropist. Founder of Superior Oil Company, author Kevin Krajick has described Keck as "the world's greatest oil prospector, a man whose instincts about the location of petroleum were so uncanny, some believed him clairvoyant." Keck established the W. M. Keck Foundation.