| Thaddeus | Man | Greek Names |
| Thadine | Woman | American Names |
| Thady | Unisex | Greek Names |
| Thai | Man | Vietnamese Names |
| Thaïs | Woman | Greek Names |
| Thalassa | Woman | Greek Names |
| Thales | Man | Greek Names |
| Thalia | Woman | Greek Names |
| Thallo | Woman | Greek Names |
| Thaman | Man | Arabic Names |
| Thamar | Man | Arabic Names |
| Thameena | Woman | Arabic Names |
| Thamina | Woman | Arabic Names |
| Thana | Woman | Arabic Names |
| Thanasis | Man | Greek Names |
| Thandiwe | Woman | African - Xulu, Xhosa, and Ndebele Names |
| Thando | Unisex | African - From the <i>Ndebele</i> language sp Names |
| Thane | Unisex | English Names |
| Thanh | Man | Vietnamese Names |
| Thanos | Man | Greek Names |