- Alfonso III, King of Asturias and Leon, approximately 848-approximately 9101
- Alfonso V, King of Asturias and León, 994-1027 or 10281
- Alfonso VI, King of Castile and Leon, 1030-11091
- Alfonso VII, The Emperor, King of Castile, 1104-11571
- Alfonso VIII, King of Castile, 1155-12141
- Alfīyat al-ʻIrāqī (ʻIrāqī, ʻAbd al-Raḥīm ibn al-Ḥusayn)1
- Allegories1
- Allegory1
- Almanacs1
- Amulets1
- Ana, Queen, consort of Philip II, King of Spain, 1549-15801
- Animal culture1
- Anne (Mother of the Virgin Mary), Saint1
- Ansar1
- Anti-Catholicism1
- Antiphons (Music)1
- Apologetic writings1
- Apostasy--Catholic Church1
- Arab countries1
- Arabic language--Figures of speech1