- Bayezid I, Sultan of the Turks, approximately 1360-14031
- Bayezid II, Sultan of the Turks, 1447 or 1448-15121
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- Bayḍāwī, ʻAbd Allāh ibn ʻUmar, d. 1286? Lubb al-albāb fī ʻilm al-iʻrāb1
- Baḥraq, Muḥammad ibn ʻUmar, 1465-1524. ʻUrwah al-wathīqah1
- Baṭṭāl, Abū Muḥammad ʻAbd Allāh, -7401
- Beards1
- Beauchamp, Colin de1
- Bebel, Heinrich, 1472-15181
- Beeleye, John de1
- Beeleye, Margery de1
- Begging--Religious aspects--Hinduism1
- Beghards1
- Beguines1
- Bektashi7
- Belgium108
- Belgium--Andenne1
- Belgium--Brabant1
- Belgium--Flanders2