- Basilica di S. Marco Evangelista al Campidoglio (Rome, Italy)1
- Basilica di San Marco (Venice, Italy)1
- Basmalah23
- Bassianus, of Glisate1
- Bassini, Antonio1
- Bassāmat ahl al-bayt (Wazīrī, Ibrāhīm ibn Muḥammad)1
- Bateman family1
- Bathhouses2
- Bathing customs34
- Baths, Turkish1
- Batignano, Carlo Gasparie di1
- Batini, Andreas1
- Battle Abbey1
- Battle of Badr (Badr Ḥunayn, Saudi Arabia : 624)5
- Battle of Karbalāʼ (Karbalāʼ, Iraq : 680)1
- Battle of Pharsalus (Farsala, Greece : 48 B.C.)1
- Baudhāyana7
- Baudhāyana. Vihārasūtra1
- Baybars I, Sultan of Egypt and Syria, 1223?-12771
- Bayḍāwī, ʻAbd Allāh ibn ʻUmar, -1286?1