| 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 |
| Theon | Man | Greek Names |
| Theone | Woman | Greek Names |
| Theophanes | Man | Greek Names |
| Theophania | Woman | Greek Names |
| Theophila | Woman | Greek Names |
| Theophilia | Woman | Greek Names |
| Theophilus | Man | Greek Names |
| Theora | Woman | Greek Names |