- Arthur William Barton, Church of Ireland Archbishop of Dublin
- Robert Henry Charles, biblical scholar, theologian, and translator
- John Nelson Darby, evangelist and Bible translator
- Charles D'Arcy, Church of Ireland Archbishop of Dublin and Armagh
- John Dowden, Bishop of Edinburgh and ecclesiastical historian
- Richard William Enraght, Irish Anglican priest and religious controversialist
- William Fitzgerald, Church of Ireland bishop and author
- David F. Ford, Regius Professor of Divinity at the University of Cambridge since 1991
- Alexander Charles Garrett, bishop of the Episcopal Church in the United States of America
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- William Magee, Irish Anglican Archbishop of York
- Father John Main, OSB, Benedictine monk
- Fr. Malachi Martin S.J., author
- Charles Maturin, Church of Ireland clergyman and gothic author
- Joseph Ferguson Peacocke, Church of Ireland Archbishop of Dublin
- William Reeves, bishop, antiquarian, and President of the Royal Irish Academy
- Robert Warren Stewart, missionary to China, murdered in Kucheng Massacre
- Bishop James Ussher, Primate of All Ireland, noted for (mis)calculating the date of creation as the night preceding Sunday 23 October 4004 BC
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