John Haddon Leith (September 10, 1919 – August 12, 2002) was a Presbyterian theologian and ordained minister who was the Pemberton Professor of Theology at Union Theological Seminary in Virginia from 1959 to 1990.
He authored at least 18 books and countless essays on Christianity, over the years moving from a moderate to a strongly critical, conservative perspective on the Presbyterian Church (USA).
At age 10 the Leith family moved to Due West, South Carolina where he remained while attending Erskine College in 1936, where he earned a B.A.
Before becoming professor at Union Theological Seminary in Richmond, Va. 1959, Leith served as pastor at churches in Mobile, Alabama; Auburn, Alabama; and Nashville, Tennessee.
Leith was a member of various societies, including: The Synod of the Mid-Atlantic, New Hope Presbytery, Omicron Delta Kappa, The American Society of Church History.