| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 21 | Actaeon | Latin | A hunter. | M | |
| 22 | Actaeonis | Latin | A hunter. | M | |
| 23 | Actaeus | Latin | From Athens. | M | |
| 24 | Actor | Latin | Son of Azeus. | M | |
| 25 | Actoris | Latin | Son of Azeus. | M | |
| 26 | Adok | Latin | Of the Adriatic. | M | |
| 27 | Adolf | Latin | Variant of Adolphus: Latinized form of the Old German Adalwolf' meaning noble wolf. Used by 17th and 18th century German royal families, and introduced into Britain by the Hanoverians. | M | |
| 28 | Adolfo | Latin | Noble wolf. | M | |
| 29 | Adolph | Latin | Variant of Adolphus: Latinized form of the Old German Adalwolf' meaning noble wolf. Used by 17th and 18th century German royal families, and introduced into Britain by the Hanoverians. | M | |
| 30 | Adolphe | Latin | Variant of Adolphus: Latinized form of the Old German Adalwolf' meaning noble wolf. Used by 17th and 18th century German royal families, and introduced into Britain by the Hanoverians. | M | |
| 31 | Adolphus | Latin | Latinized form of the Old German Adalwolf' meaning noble wolf. Used by 17th and 18th century German royal families, and introduced into Britain by the Hanoverians. | M | |
| 32 | Adrean | Latin | Variant of Adrian: Black; dark; of the Adriatic. | M | |
| 33 | Adren | Latin | Variant of Adrian: Black; dark; of the Adriatic. | M | |
| 34 | Adrian | Latin | Black; dark; of the Adriatic. | M | |
| 35 | Adriano | Latin | Of the Adriatic. | M | |
| 36 | Adrien | Latin | Of the Adriatic. | M | |
| 37 | Adrik | Latin | Of the Adriatic. | M | |
| 38 | Adrion | Latin | From Adria.: (Adriatic sea region.). | M | |
| 39 | Adron | Latin | From Adria.: (Adriatic sea region.). | M | |
| 40 | Aeetes | Latin | Medea's father. | M | |