| View info | Aphrahat - Syriac-Christian author |
| View info | Archelaus, Saint, Bishop of Caschara - Bishop of Caschara |
| View info | aristides - Saint Marcianus Aristides was a 2nd-century Christian Greek author. |
| View info | Aristotle, 384-322 - Greek philosopher and scientist |
| View info | Arminius, Jacobus (1560-1609) - Dutch Reformed theologian |
| View info | Arndt, Johann (1555-1621) - Lutheran theologian and mystical writer |
| View info | Arnobius of Sicca - Early Christian apologist |
| View info | Asbury, Francis (1745-1816) - American Methodist bishop |
| View info | Asterius Urbanus - Montanist writer |
| View info | Athanase, saint, 0295?-0373 - Patriarch of Alexandria |