- Anjou dynasty, 1268-14421
- Annibale, di Capua, approximately 1544-15951
- Anselm, Saint, Archbishop of Canterbury, 1033-11091
- Antella, Francesco dell'1
- Anthony, of Egypt, Saint, approximately 250-355 or 3561
- Anti-Catholicism1
- Anti-clericalism1
- Anticlaudianus (Alanus, de Insulis)1
- Antoni, Jacopo1
- Antonio Magistri1
- Antonio, Giuliano di1
- Antonio, Lorenzo di1
- Antonio, Piero di1
- Antonius, de Parma, active 1310-13231
- Apocalpytic literature1
- Apocryphal Gospels1
- Apocryphal books1
- Apocryphal books (New Testament)1
- Apocryphal books (Old Testament)1
- Apollonius, of Tyana1