| [A1250] | Antoninus Pius (Roman emperor) (19 September 86 - 7 March 161) | person | represented actor |
| [A3099] | Antonius Felix (ca 10 - 60) | person | represented actor |
| [A198] | Peter Apian (16 April 1495 - 21 April 1552) | person | author, printer, printmaker |
| [A1486] | Matthias Apiarius (ca 1500 - September 1554) | person | printer |
| [A894] | Appian of Alexandria (ca 95 - ca 165) | person | author |
| [A1251] | Appius Claudius Caecus (fl. 312 BCE - 279 BCE) | person | represented actor |
| [A1793] | Appius Claudius Pulcher (ca 129 BCE - 76 BCE) | person | represented actor |
| [A1564] | Apuleius (ca 124 – after 170) | person | represented actor |
| [A2474] | Thomas Aquinas (1225 - 7 March 1274) | person | author |
| [A1383] | Arator (ca 490 - ca 550) | person | author |
| [A2919] | Aratus (315/310 - 240 BCE) | person | represented actor |
| [A1254] | Arcadius (Roman emperor) (ca 377/378 - 1 May 408) | person | represented actor |
| [A1809] | Arcesilaus (ca 316 BCE - ca 241 BCE) | person | represented actor |
| [A1573] | Archytas of Tarentum (ca 435/410 BCE - ca 360/350 BCE) | person | represented actor |
| [A372] | Bernard Ardura | person | author |
| [A2585] | Francisco Arias (1533 - 15 May 1605) | person | author |
| [A2035] | Benito Arias Montano (1527 - 6 July 1598) | person | inscription author |
| [A1905] | Ariobarzanes of Persis (ca 368 BCE - 330 BCE) | person | represented actor |
| [A1783] | Aristion (died 1 March 86 BCE : fl. 88 BCE - 86 BCE) | person | represented actor |
| [A1569] | Aristippus (ca 435 BCE - ca 356 BCE) | person | represented actor |
