Joseph A. Munitiz is a Roman Catholic Jesuit priest and academic.
Munitiz was born in Cardiff, Wales, of Basque parentage and educated by the Christian Brothers at Liverpool, and subsequently at the Junior Seminary at Comillas, Cantabria. Munitiz's multiple courses of study include Heythrop College, Oxon, Campion Hall, Oxford, where he took the degree in Greats (Literae Humaniores), a seminary in Spain, the Pontifical Oriental Institute Rome. He was appointed to the staff of Leuven University with special responsibility for the Series Graeca of Corpus Christianorum (now published by Brepols).
Munitiz served as Master of Campion Hall, Oxford, from 1989 until 1998. He was subsequently retained as a research fellow at Birmingham University before becoming Assistant to the Master of Campion in 2010.
Early research work with Marcel Richard on the Series Graeca led him to publishing in his own name (with an academic introduction in French) volume 5 in that series and posthumously completing Richard's volume 59 (this time with the introduction in English). Other publications in the Byzantine tradition followed.
Munitiz has at various times edited the Heythrop Journal and the spiritual magazine The Way (for which he remains on the editorial board).
His interest in the work of the founder of the Society of Jesus has led to articles and most notably to a joint Penguin publication on Ignatius of Loyola's Personal Writings.
- Theognosti Thesaurus, ed. Joseph.a. Munitiz, 1971 (Corpus Christianorum, Series Graeca, vol. 5)
- Anastasii Sinaitae Quaestiones et Responsiones, edd. Marcel Richard, Joseph A. Munitiz, 2006 Corpus Christianorum, Series Graeca, vol. 59)
- Ignatius Loyola, Personal Writings, ed. Philip Endean, Joseph Munitiz, Penguin Classics 2005