| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 1 | Abdera | Greek | From Abdera. | F | |
| 2 | Abderus | Greek | A friend of Hercules. | M | |
| 3 | Abellone | Greek | Masculine. | F | |
| 4 | Absyrtus | Greek | Brother of Medea. | M | |
| 5 | Abydos | Greek | From Abydos. | M | |
| 6 | Acacia | Greek | Guileless. Honorable. Biblical; acacia wood was used to build the wilderness Tabernacle. | F | |
| 7 | Acantha | Greek | Sharp pointed or thorned. | F | |
| 8 | Acastus | Greek | An Argonaut. | M | |
| 9 | Acestes | Greek | A Trojan king from Greek mythology. | M | |
| 10 | Achates | Greek | Figure in ancient Greek mythology who was the companion of Aeneas. | M | |
| 11 | Achelous | Greek | A river god. | M | |
| 12 | Acheron | Greek | River of sorrow/woe. | M | |
| 13 | AchiIles | Greek | Lipless. | M | |
| 14 | Achilles | Greek | The mythological hero of the Trojan War famous for his valor and manly beauty - his only weak spot was his ankle (hence Achilles' Heel). | M | |
| 15 | Acis | Greek | Lover of Galatea. | M | |
| 16 | Acnes | Greek | Chaste. | F | |
| 17 | Acrisius | Greek | Grandfather of Perseus. | M | |
| 18 | Actaeon | Greek | In ancient Greek mythology Actaeon was a hunter dismembered by his own dogs. | M | |
| 19 | Acteon | Greek | A hunter dismembered by his own dogs. | M | |
| 20 | Adad | Greek | Storm and flood god. | M | |