- Balāṭunusī, Muḥammad ibn ʻAbd Allāh, 1395 or 1396-1459. Mukhtaṣar Minhāj al-ʻābidīn1
- Bank deposits (Islamic law)1
- Baqī ibn Makhlad, 816 or 17-889 or 90. Musnad1
- Bardaʻī, Muḥammad ibn Muḥammad, -1520 or 1521. Ḥāshiyat al-Bardāʻī1
- Basmalah35
- Bassāmah (Ibn ʻAbdūn, ʻAbd al-Majīd ibn ʻAbd Allāh)2
- Bassāmat ahl al-bayt (Wazīrī, Ibrāhīm ibn Muḥammad)1
- Bathhouses2
- Baths, Turkish1
- Battle of Badr (Badr Ḥunayn, Saudi Arabia : 624)5
- Battle of Karbalāʼ (Karbalāʼ, Iraq : 680)5
- Battles1
- Baybars I, Sultan of Egypt and Syria, 1223?-12772
- Bayezid I, Sultan of the Turks, approximately 1360-14031
- Bayezid II, Sultan of the Turks, 1447 or 1448-15121
- Bayḍāwī, ʻAbd Allāh ibn ʻUmar, -1286?1
- Bayḍāwī, ʻAbd Allāh ibn ʻUmar, -1286? Lubb al-albāb1
- Bayḍāwī, ʻAbd Allāh ibn ʻUmar, d. 1286? Lubb al-albāb9
- Bayḍāwī, ʻAbd Allāh ibn ʻUmar, d. 1286? Lubb al-albāb fī ʻilm al-iʻrāb1
- Bazzār, Khalaf ibn Hishām, 767 or 768-8441