- Asia--Ganges River5
- Assumption of the Blessed Virgin Mary2
- Astrolabes3
- Astrology1
- Astrology, Arab5
- Astrology, Turkish2
- Astronomical instruments1
- Astronomy1
- Astronomy, Arab4
- Athīr al-Dīn al-Abharī, al-Mufaḍḍal ibn ʻUmar, -1265. Hidāyat al-ḥikmah1
- Augustine, of Hippo, Saint, 354-4301
- Augustinians3
- Autographs14
- Avatars (Religion)1
- Avodah (Yom Kippur liturgy)1
- Aṣḥāb al-kahf1
- Badr al-Rashīd, Muḥammad ibn Ismāʻīl, -1366. Alfāẓ al-kufr2
- Badr al-ṭāliʻ fī ḥall Jamʻ al-jawāmiʻ (Maḥallī, Jalāl al-Dīn Muḥammad ibn Aḥmad)1
- Badʼ al-amālī (Ūshī, ʻAlī ibn ʻUthmān)3
- Bahaüddin Nakşibend, 1318-1389. Awrād1