| Arlette | An Oath | Female |
| Arnold | The Eagle Rules. | Male |
| Artemas | Gift From Artemis | Male |
| Artemisia | Perfection | Female |
| Ascalaphus | Myth Name (Turned Into An Owl By Persephone) | Male |
| Asha | Lively | Female |
| Ashur | Swahili Name For A Child Born During The Muslim Month Of Ashur. | Male |
| Asopus | Myth Name (Son Of Hector Killed At Troy) | Male |
| Aspasia | Welcomed | Female |
| Atalanta | Myth Name (A Huntress) | Female |
| Atarah | Crowned | Female |
| Athalia | God Is Great | Female |
| Athamas | Myth Name (Father Of Phrixus And Helle) | Male |
| Athanasia | Immortal | Female |
| Athanasios | Noble | Male |
| Atia | Ancient | Female |
| Atreus | Myth Name (Father Of Agamemnon) | Male |
| Auda | Old Or Wealthy | Female |
| Augustina | Worthy Of Respect | Female |
| Augustus | Majestic Dignity: Grandeur. | Male |
| Aurelia | Gold | Female |
| Aureliana | Golden | Female |
| Aurelius | Golden. | Male |
| Autolycus | Myth Name (Son Of Hermes) | Male |
| Autonoe | Myth Name (Mother Of Actaeon) | Female |