- Asceticism1
- Asceticism--Islam1
- Ashkenazi, Ẓevi Hirsch ben Jacob, -17181
- Assumption of the Blessed Virgin Mary1
- Assyrian Church of the East1
- Astrology, Roman1
- Astrology--Religious aspects1
- Astronomy in rabbinical literature1
- Astronomy, Ancient1
- Astronomy, Arab--Tables1
- Astronomy, Greek1
- Astronomy--Religious aspects1
- Aswānī, ʻUthmān ibn Saʻd Allāh, active 19th century. Risālat al-ikhwān1
- Atlases1
- Atoms1
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- Atonement (Prayer)--Hinduism1
- Attila, -4531
- Aubertus, de Galardone1
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