Author
- Adam Luce Dominici1
- Adam Strobell1
- Adam of Aldersbach1
- Adam of Bockenfield1
- Adam of Eynsham1
- Adhraʻī, Abū Bakr ibn Aḥmad1
- Adli Sümbülî1
- Adranawī, Ibrāhīm ibn ḥamzah, d. 1557 or 81
- Adrian IV1
- Adriano Castellesi1
- Adrien de le Borve1
- Aelianus Tacticus1
- Agnes de Cavaciis1
- Agnes de Claustris1
- Agnivesa1
- Agniveśamuni1
- Agnolo Poliziano1
- Agostino Staccoli1
- Agrippa d'Aubigné1
- Aharon Mosheh ben Tsevi Hirsh1