| Thijs | Man | Dutch Names |
| Thimba | Man | Swahili Names |
| Thina | Woman | Greek Names |
| Thisbe | Woman | Greek Names |
| Thom | Man | Greek Names |
| Thomae | Woman | Greek Names |
| Thomas | Man | Greek Names |
| Thompson | Man | English Names |
| Thono | Unisex | Aboriginal Names |
| Thor | Man | Scandinavian Names |
| Thora | Woman | Scandinavian Names |
| Thorbiorn | Man | Scandinavian Names |
| Thorin | Man | Scandinavian Names |
| Thorir | Man | Scandinavian Names |
| Thorley | Unisex | English Names |
| Thorne | Man | English Names |
| Thornton | Man | English Names |
| Thu | Unisex | Vietnamese Names |
| Thuan | Man | Vietnamese Names |
| Thule | Man | Greek Names |