| Name | Meaning | Gender | Origin |
|---|
| Stone | Stone | Male | English |
| Stormy | Violent weather | Unisex | English |
| Strom | Tree, Stream | Male | German |
| Sully | Keen eye | Male | Gaelic |
| Sunday | 7th day of the week | Unisex | English |
| Sunny | Filled with sunlight | Male | English |
| Sunshine | Light from the sun | Unisex | English |
| Sutherland | Southern land | Male | Norse |
| Sutton | Town on the south | Male | English |
| Tansy | Immortal | Male | Greek |
| Taz | Wild Animal, Thrid Born | Unisex | American |
| Teal | The Bird Teal: Also The Blue-Green Color. | Unisex | English |
| Temple | House of worship | Unisex | English |
| Templeton | House of the Knights Templar settlement | Male | English |
| Terran | Terran Means Earthman. Variants Are Contemporary Rhyming Blends Of Ter- Plus Darin. | Unisex | English |
| Tex | Of Texas | Unisex | English |
| Theo | Gift of God | Male | Greek |
| Thorne | Thorn bush | Male | English |
| Thornton | Thorn bush enclosure or settlement | Male | English |
| Thorpe | Hamlet | Male | Norse |
| Thurlow | Hill of thor | Male | English |
| Thurston | Thor's stone, Thor's settlement | Male | English |
| Tibor | The river Tiber | Male | Latin |
| Tiger | Tiger | Unisex | English |
| Tilden | Fertile valley | Male | English |
| Townsend | Standing at the end of a village | Male | English |
| Travis | Toll collector | Male | French |
| Tremain | Rock settlement | Male | Cornish |
| Trenton | Trent's town | Male | English |
| Trevin | | Male | Hebrew |