- Almanacs, German1
- Alphabet1
- Altars1
- Altoviti, Bartolomea1
- Alī Ādila Śāha II, Sultan of Bijapur, 1638-16721
- Amadori, Bartolomeo1
- Amadori, Niccolo1
- Amaracandrasūri, active 13th century. Kavyakalpalatā1
- Ambrogio, Leonardo d'1
- Ambrose, Saint, Bishop of Milan, -3971
- Ambrosian rite (Catholic Church)1
- Amedei, Bartolomeo1
- Amelius, Martyr1
- Amicus, Martyr1
- Amideo, Chele d'1
- Amputees1
- Amīr al-Kabīr, Muḥammad ibn Muḥammad, 1742-1817. Majmūʻ fī al-fiqh1
- Anas ibn Mālik, -approximately 7111
- Anaya, Diego de1
- Anaya, Pedro1