- Augustinians2
- Aurispa, Giovanni, approximately 1376-14591
- Austria94
- Austria--Lambach (Upper Austria)1
- Austrian90
- Authors, Classical18
- Autographs7
- Autos-da-fé1
- Awḍaḥ al-masālik ilá Alfīyat Ibn Mālik (Ibn Hishām, ʻAbd Allāh ibn Yūsuf)3
- Badr al-ṭāliʻ fī ḥall Jamʻ al-jawāmiʻ (Maḥallī, Jalāl al-Dīn Muḥammad ibn Aḥmad)1
- Baglioni, Niccolò1
- Bahaüddin Nakşibend, 1318-13891
- Bahjah al-Wardīyah (Ibn al-Wardī, Zayn al-Dīn ʻUmar ibn al-Muẓaffar)1
- Baldini, Antonio1
- Baldo, Antonio di1
- Baldo, Vestro di1
- Balducci, Domenico1
- Balducci, Nonnina1
- Balestriere, Antonio1
- Ballads1