- Asceticism--Hinduism1
- Asharites1
- Ashbāh wa-al-naẓāʼir (Ibn Nujaym, Zayn al-Dīn ibn Ibrāhīm)3
- Asia1
- Asia--Ganges River3
- Astarābādhī, Muḥammad ibn ʻAlī, -1618 or 1619. Manhaj al-maqāl fī taḥqīq aḥwāl al-rijāl1
- Astrolabes12
- Astrology19
- Astrology, Arab11
- Astrology, Indic1
- Astrology, Iranian1
- Astrology, Turkish2
- Astrometeorology1
- Astronomical instruments7
- Astronomy17
- Astronomy, Arab40
- Astronomy, Medieval1
- Aswānī, ʻUthmān ibn Saʻd Allāh, active 19th century. Risālat al-ikhwān1
- Athīr al-Dīn al-Abharī, al-Mufaḍḍal ibn ʻUmar, -1265. Hidāyat al-ḥikmah7
- Authority--Religious aspects--Islam1