- Augsburg Confession1
- Augustine, of Hippo, Saint, 354-4306
- Augustinians8
- Aurispa, Giovanni, approximately 1376-14591
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- Aveiro, Gabriel de Lencastre, Duque de, 1667-17451
- Averroës, 1126-1198. Talkhīs kitāb al-ʻIbārah1
- Averroës, 1126-1198. Talkhīṣ kitāb al-maqūlāt1
- Averroës, 1126-1198. Talkhīṣ madkhal Furfūriyūs1
- Avesta. Yasna1
- Avicenna, 980-10371