- Astrology1
- Astrology, Arab1
- Astronomical instruments1
- Astronomy1
- Athīr al-Dīn al-Abharī, al-Mufaḍḍal ibn ʻUmar, -1265. Hidāyat al-ḥikmah1
- Augustine, of Hippo, Saint, 354-4301
- Badr al-ṭāliʻ fī ḥall Jamʻ al-jawāmiʻ (Maḥallī, Jalāl al-Dīn Muḥammad ibn Aḥmad)1
- Badʼ al-amālī (Ūshī, ʻAlī ibn ʻUthmān)1
- Bahnasī, ʻAbd al-Wahhāb ibn al-Ḥasan, -1286 or 1287. Naẓm Muthallath Quṭrub1
- Barbara, Saint1
- Basmalah1
- Bektashi1
- Belgium--Bruges1
- Belgium--Tournai1
- Benedictine nuns1
- Benefactors1
- Beneventan minuscule1
- Bevelled edge boards1
- Bhavānī (Hindu deity)1
- Binding waste1