| Athor | Woman | Spanish Names |
| Athumani | Man | Swahili Names |
| Atia | Woman | Latin Names |
| Ática | Woman | Spanish Names |
| Atifa | Woman | Arabic Names |
| Atira | Woman | Hebrew Names |
| Atish | Man | Persian Names |
| Atius | Man | Latin Names |
| Atiya | Woman | Arabic Names |
| Atkins | Unisex | English Names |
| Atkinson | Unisex | English Names |
| Atl | Unisex | Aztec Names |
| Atlanta | Woman | Greek Names |
| Atlas | Man | Greek Names |
| Atle | Man | Scandinavian Names |
| Atlee | Unisex | English Names |
| Atli | Man | Scandinavian Names |
| Atoc | Unisex | Incan Names |
| Atreus | Man | Greek Names |
| Atsuko | Woman | Japanese Names |