Edwin Thomas John Kerby (12 April 1885 – 5 July 1971) was an Australian politician. Born in Ballarat, Victoria, he attended Grenville College before becoming a mining engineer and electrical contractor. He served in World War I from 1914 to 1919. In 1919, he was selected as the Nationalist candidate for the Australian House of Representatives seat of Ballaarat, and defeated sitting Labor MP Charles McGrath by one vote, the closest result ever recorded for the House of Representatives.