Author
- Al-Qastallani1
- Al-Ḥusayn ibn al-Ḥasan Jurjānī1
- Alexander of Villedieu1
- Alfonso Spezzani1
- Ali Qushji1
- Anantabhaṭṭa1
- Anantadeva1
- Aniruddha1
- Appayya Dikshita1
- Augustine of Hippo1
- Augustinus de Leonissa1
- Averroes1
- Avicenna1
- Aḥmad ibn Mūsá Khayālī1
- Aḥmad ibn Qāsim Ghazzī1
- Aḥmad ibn ʻAbd al-ʻAzīz Hilālī1
- Aḥmad ibn Ḥusayn Ibn al Qunfudh1
- Badarayana1
- Bartholomew Anglicus1
- Bartholomäus Mariensüss1