Author
- Antoninus Pius, Emperor of Rome, 86-161 2
- Apollodorus. 2
- Appendix Vergiliana 1
- Appianus of Alexandria 15
- Apuleius 1
- Aquila Romanus 1
- Aratus Solensis 2
- Archilochus 2
- Archimedes 2
- Archinus Historicus ca. 4.Jh.v.Chr. 1
- Aretaeus of Cappadocia 2
- Arethas, Archbishop of Caesarea (Cappadocia), ca. 860-ca. 940 1
- Argumenta Aeneidis et Tetrasticha in cunctis libris Vergilii 4
- Aristagoras Milesius, 4. Jh. v. Chr. 1
- Aristarchus, of Samos 1
- Aristodemus Historicus 4. Jh. v. Chr./2. Jh. n. Chr. 1
- Aristodemus Mythographus fl.1. Jh. v. Chr. 1
- Ariston, of Chios 1
- Aristotle. 384-322 9
- Arrian 7
