- Batista de Lanuza y Tafalla, Miguel, -1659. Vida de la venerable Madre Geronima de San Estevan1
- Batista de Lanuza y Tafalla, Miguel, -1659. Vida de la venerable madre Feliciana de San Ioseph1
- Battle of Agincourt (Agincourt, France : 1415)1
- Battle of Badr (Badr Ḥunayn, Saudi Arabia : 624)7
- Battle of Covadonga (Covadonga, Spain : 718)1
- Battle of Karbalāʼ (Karbalāʼ, Iraq : 680)5
- Battle of Pharsalus (Farsala, Greece : 48 B.C.)1
- Battles1
- Baudhāyana7
- Baudhāyana. Vihārasūtra1
- Baybars I, Sultan of Egypt and Syria, 1223?-12772
- Bayezid II, Sultan of the Turks, 1447 or 1448-15121
- Bayḍāwī, ʻAbd Allāh ibn ʻUmar, -1286?1
- Bayḍāwī, ʻAbd Allāh ibn ʻUmar, d. 1286? Lubb al-albāb1
- Bayḍāwī, ʻAbd Allāh ibn ʻUmar, d. 1286? Lubb al-albāb fī ʻilm al-iʻrāb1
- Baʻal Shem Ṭov, approximately 1700-17601
- Baḥraq, Muḥammad ibn ʻUmar, 1465-1524. ʻUrwah al-wathīqah1
- Baṭāʼiḥī, Manṣūr ibn Mūsá, -12931
- Baṭṭāl, Abū Muḥammad ʻAbd Allāh, -7401
- Beards1