Starting with letter A
| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 501 | Acis | Latin | Son of Faunus. | M | |
| 502 | Ackerley | English | Dweller at the acre meadow. | M | |
| 503 | Ackley | English | Dwells at the oak tree meadow. | M | |
| 504 | Acrisioniades | Latin | Descendant of Acrisius. | M | |
| 505 | Acrisius | Greek | Grandfather of Perseus. | M | |
| 506 | Acrisius | Latin | Father of Danae. | M | |
| 507 | Actaeon | Greek | In ancient Greek mythology Actaeon was a hunter dismembered by his own dogs. | M | |
| 508 | Actaeon | Latin | A hunter. | M | |
| 509 | Actaeonis | Latin | A hunter. | M | |
| 510 | Actaeus | Latin | From Athens. | M | |
| 511 | Acteon | Greek | A hunter dismembered by his own dogs. | M | |
| 512 | Acton | English | A town in the U.K. | M | |
| 513 | Actor | Latin | Son of Azeus. | M | |
| 514 | Actoris | Latin | Son of Azeus. | M | |
| 515 | Acwel | Anglo-Saxon | Kills. | M | |
| 516 | Acwellen | Anglo-Saxon | Kills. | M | |
| 517 | Adad | Greek | Storm and flood god. | M | |
| 518 | Adadah | Biblical | Testimony of the assembly | M | |
| 519 | Adael | Hebrew | God's ornament. | M | |
| 520 | Adah | Biblical | An assembly | M | |