| Thady | Unisex | Greek Names |
| Thaïs | Woman | Greek Names |
| Thalassa | Woman | Greek Names |
| Thales | Man | Greek Names |
| Thalia | Woman | Greek Names |
| Thallo | Woman | Greek Names |
| Thanasis | Man | Greek Names |
| Thanos | Man | Greek Names |
| Tharin | Man | Greek Names |
| Thea | Woman | Greek Names |
| Thecla | Woman | Greek Names |
| Theda | Woman | Greek Names |
| Theia | Woman | Greek Names |
| Thelma | Woman | Greek Names |
| Themis | Woman | Greek Names |
| Theo | Man | Greek Names |
| Theodora | Woman | Greek Names |
| Theodore | Man | Greek Names |
| Theodosia | Woman | Greek Names |
| Theodosius | Man | Greek Names |