| Arachne | | ə-RAK-nee (English) | Greek Mythology | |
| Ares | | AR-eez (English), ER-eez (English) | Greek Mythology | |
| Arethousa | | - | Greek Mythology | |
| Arethusa | | - | Greek Mythology (Latinized) | |
| Argus | | - | Greek Mythology (Latinized) | |
| Ariadne | | ah-ree-ahd-ne (Ancient Greek), ar-ee-AD-nee (English) | Greek Mythology | |
| Aristaeus | | ar-is-TEE-əs (English) | Greek Mythology (Latinized) | |
| Aristaios | | - | Greek Mythology | |
| Aristodemos | | - | Ancient Greek, Greek Mythology | |
| Artemis | | AHR-tə-mis (English) | Greek Mythology, Greek | |
| Asklepios | | əs-KLEE-pee-os (English) | Greek Mythology | |
| Astraea | | - | Greek Mythology (Latinized) | |
| Astraia | | - | Greek Mythology | |
| Atalanta | | - | Greek Mythology (Latinized) | |
| Athena | | - | Greek Mythology | |