- Aveiro, Gabriel de Lencastre, Duque de, 1667-17451
- Avesta. Yasna1
- Avicenna, 980-1037. Qaṣīdah al-rūḥīyah1
- Aśvamedha1
- Aśvins (Hindu deities)1
- Badawī, Aḥmad, 1200?-12761
- Bagalāmukhī (Hindu deity)1
- Bahlawān, Mūsá ibn ʻAbd Allāh, -1720 or 1721. Risālah al-qiyāsīyah1
- Bail (Islamic law)1
- Balkan Peninsula1
- Bangladesh1
- Barley--Religious aspects--Hinduism1
- Battle of Badr (Badr Ḥunayn, Saudi Arabia : 624)1
- Baudhāyana1
- Bayezid I, Sultan of the Turks, approximately 1360-14031
- Bayḍāwī, ʻAbd Allāh ibn ʻUmar, d. 1286? Lubb al-albāb fī ʻilm al-iʻrāb1
- Begging--Religious aspects--Hinduism1
- Bektashi1
- Belarus--Brest1
- Belgium1