- Alessandri, Alessandro degli1
- Alessandri, Bartolomeo degli2
- Alessandri, Niccolò degli1
- Alessandri, Piero degli9
- Alessandri, Pietro degli2
- Alessandro, Pietro di1
- Alexander Balas, King of Syria, -145 B.C.1
- Alexander III, Pope, -11811
- Alexander, de Villa Dei. Doctrinale puerorum1
- Alexander, the Great, 356 B.C.-323 B.C.12
- Alexius, Saint1
- Alfonso II, King of Naples, 1448-14951
- Alfonso V, King of Aragon, 1396-14581
- Alfonso X, King of Castile and Leon, 1221-12842
- Alfīyah (Ibn Mālik, Muḥammad ibn ʻAbd Allāh)16
- Alfīyat al-ʻIrāqī (ʻIrāqī, ʻAbd al-Raḥīm ibn al-Ḥusayn)6
- Algebra12
- Algeria--Hippo (Extinct city)2
- Aljamía1
- Allegories3