| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 421 | Asera | Latin | From Asia. | F | |
| 422 | Asia | Latin | Mother of Atlas. | F | |
| 423 | Assa | Latin | Mother of Simon. | F | |
| 424 | Asta | Latin | Holy. | F | |
| 425 | Astarte | Latin | Phoenician goddess of love. | F | |
| 426 | Asteria | Latin | Star. | F | |
| 427 | Astra | Latin | From astralis meaning of the stars, derived from the Greek astron meaning star. | F | |
| 428 | Astraea | Latin | Surname of Artemis. | F | |
| 429 | Astynax | Latin | Son of Hector. | M | |
| 430 | Astynome | Latin | Daughter of Chryses. | F | |
| 431 | Atabulus | Latin | Southeastem wind. | M | |
| 432 | Atalanta | Latin | A huntress. | F | |
| 433 | Atella | Latin | From Atella. | F | |
| 434 | Athamas | Latin | Brother of Sisyphus. | M | |
| 435 | Athena | Latin | Variant of Athene; the mythological goddess of wisdom and war. | F | |
| 436 | Athene | Latin | Mythological goddess of wisdom and war. | F | |
| 437 | Atlas | Latin | A Titan. | M | |
| 438 | Atreus | Latin | Father of Agamemnon. | M | |
| 439 | Atrides | Latin | Descended from Atreus. | M | |
| 440 | Atropos | Latin | One of the Moirae. | F | |