Author
- Accursius1
- Achilles Statius1
- Acyutakr̥ṣṇānandatīrtha1
- Adam Magister1
- Adam Strobell1
- Adam of Aldersbach1
- Adam of Bockenfield1
- Adam of Eynsham1
- Adhraʻī, Abū Bakr ibn Aḥmad1
- Adranawī, Ibrāhīm ibn ḥamzah, d. 1557 or 81
- Adrian VI1
- Adriano Castellesi1
- Aelianus Tacticus1
- Agnivesa1
- Agostino Staccoli1
- Agrippa d'Aubigné1
- Aharon Mosheh ben Tsevi Hirsh1
- Aharon ben Yitsḥaḳ Gerish1
- Ahdari1
- Ahi Ahmet Çelebi1