- Authority--Religious aspects1
- Authors, Arab1
- Aveiro, Gabriel de Lencastre, Duque de, 1667-17451
- Avesta. Yasna1
- Avicenna, 980-10371
- Avicenna, 980-1037. Ishārāt wal-al-tanbīhāt1
- Avicenna, 980-1037. Qaṣīdah al-rūḥīyah1
- Avicenna, 980-1037. Tafsīr Sūrat al-Ikhlāṣ1
- Azar, Menaḥem ben Natan1
- Aśvamedha1
- Aśvins (Hindu deities)1
- Aḥsāʼī, Ibrāhīm ibn Ḥasan, -1639. Selections1
- Aṣḥāb al-kahf1
- Badawī, Aḥmad, 1200?-12761
- Bagalāmukhī (Hindu deity)1
- Bail (Islamic law)1
- Bajāʼī, ʻAbd al-Raḥmān ibn Aḥmad, -1384 or 1385. Muqaddimah1
- Bakrī, Abū al-Ḥasan ibn Jalāl al-Dīn, -approximately 1543. Ḥizb1
- Balkan Peninsula1
- Bangladesh1