| Tranquilla | Woman | Spanish Names |
| Trapper | Unisex | American Names |
| Travis | Man | English Names |
| Travon | Man | American Names |
| Trayvon | Man | American Names |
| Treasure | Unisex | English Names |
| Treat | Unisex | American Names |
| Trefor | Man | Welsh Names |
| Trejo | Unisex | Spanish Names |
| Trella | Woman | Spanish Names |
| Tremain | Man | Welsh Names |
| Tremayne | Unisex | Irish Names |
| Trent | Man | English Names |
| Trenton | Man | English Names |
| Tresden | Unisex | English Names |
| Tress | Woman | English Names |
| Treva | Woman | English Names |
| Trevain | Unisex | English Names |
| Trevelian | Man | Welsh Names |
| Trevet | Man | English Names |