| Name | Meaning | Gender | Origin |
|---|
| Sullivan | black-eyed one | Male | Irish |
| Sutherland | From Sutherland
| Male | |
| Sven | youth | Male | Norse |
| Syd | Variant of Sidney from St. Denis
| Male | |
| Sye | | Unisex | |
| T. | Tia | Unisex | |
| Taco | A folded fried tortilla filled with meat, cheese and spices. | Unisex | |
| Tadd | Father | Unisex | Welsh |
| Tag | | Unisex | |
| Takeya | | Unisex | Hebrew |
| Tank | A large metal container. A heavily armed combat vehicle | Unisex | |
| Ted | English, wealthy guardian | Male | English |
| Terry | Latin clan name of uncertain meaning | Male | English |
| Thatcher | roof fixer | Male | English |
| Thomas | Twin
| Male | Aramaic |
| Thomas | Twin
| Male | Aramaic |
| Thompson | son of Tom | Male | English |
| Thorne | thorn tree | Male | English |
| Tiger | A large, striped, carnivorous mammal from Asia. | Male | Animal |
| Tiger | A large, striped, carnivorous mammal from Asia. | Male | Animal |
| Tim | Greek, honoring God | Male | Greek |
| Timothy | honoring God | Male | Greek |
| Titch | Tiny | Unisex | |
| Tobias | From the Hebrew Tobiah Jah is good.
| Male | Greek |
| Todd | fox | Male | English |