- Aswānī, ʻUthmān ibn Saʻd Allāh, active 19th century. Risālat al-ikhwān1
- Atlases1
- Atoms1
- Atonement (Prayer)1
- Atonement (Prayer)--Hinduism1
- Attila, -4531
- Auctions1
- Augsburg Confession1
- Augustine, of Hippo, Saint, 354-4301
- Augustinians1
- Austria--Vienna1
- Authority--Religious aspects1
- Authors, Arab1
- Autos-da-fé1
- Avicenna, 980-1037. Ishārāt wal-al-tanbīhāt1
- Avraham ben Yosef Ḥasan, min Ṭaledo1
- Ayyubids1
- Azar, Menaḥem ben Natan1
- Azharot1
- Aḥmad ibn Qāsim, 1813 or 1814-approximately 1856 or 1857. Wasīlat al-mubtadiʼīn li-ʻilm ghurrat al-shuhūr wa-al-sinīn1