Norman P. Tanner, SJ (born 1943) is an English Catholic historian and priest of the Society of Jesus (Jesuit Order). He serves as a professor of Church History at the Pontifical Gregorian University in Vatican City, Rome.

Early life and education Norman P. Tanner was born 26 February 1943, in Woking, England to John Basil and Agnes Emily () Tanner.

He attended Ampleforth College from 1956 to 1961 before joining the Jesuits, where he was a novice from 1961 to 1963. In 1966, he completed a Licentiate of Sacred Theology at Heythrop College, University of London, under historian and philosopher Frederick Copleston, SJ. He later attended Oxford University, from which he earned a Bachelor of Arts (1969), Master of Arts (1974), and PhD (1974). Two years later, he earned a Bachelor of Theology from Pontifical Gregorian University.

Career From 1978 to 2003, Tanner taught at the University of Oxford, where he was appointed University Research Lecturer in 1997. He left Oxford in 2003 to join the Pontifical Gregorian University, where he teaches and conducts research.

An expert on Church councils, Tanner is widely recognized for his work as editor of Decrees of the Ecumenical Councils, a standard reference for the documents of Church councils. His research focuses on the later Middle Ages, with particular interest in popular religion during the medieval period. He has authored multiple books and articles on the history and practice of Church councils.

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Edited

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