Samuel T. Lloyd III is a priest of the Episcopal Church in the United States who served as the ninth Dean of the Washington National Cathedral, having been installed there on April 23, 2005, and serving until September 18, 2011. Before his tenure as Dean, Samuel Lloyd previously served as rector of historic Trinity Church, Copley Square in Boston, Massachusetts, one of the largest Episcopal congregations in the United States. He returned to Trinity after leaving the National Cathedral. Lloyd has taught in seminaries and has frequently spoken at conferences and conventions. He has preached on the "Protestant Hour" on radio and offered courses in the area of Christianity and literature, including Flannery O'Connor, Dante, contemporary fiction, C. S. Lewis, and the parables. He served as a regent of the University of the South. His writing and reviews have been published by the Sewanee Theological Review, Forward Movement, Anglican Digest, and Journal of Religion, among others.