- Alexander Balas, King of Syria, -145 B.C.1
- Alexander III, Pope, -11811
- Alexander, de Villa Dei. Doctrinale puerorum1
- Alexius, Saint1
- Alfonso II, King of Naples, 1448-14951
- Alfonso V, King of Aragon, 1396-14581
- Alif (The Arabic letter)1
- Aljamía1
- Alliata family1
- Almanach perpetuum celestium motuum (Zacuto, Abraham ben Samuel)1
- Alphabet books1
- Alphabet of Ben Sira1
- Alphabet--Religious aspects--Islam1
- 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