| Name | Meaning | Gender | Origin |
|---|
| Tahoe | Edge of the lake | Unisex | Native American |
| Taiga | Boreal forest or snow forest | Both | English |
| Talon | A claw | Male | English |
| Tank | A large metal container. A heavily armed combat vehicle | Unisex | English |
| Tara | Crag | Female | Gaelic |
| Tasha | (Christ's) birthday | Female | Latin |
| Tatar | Turkic people who were one of the five major tribal confederations in the Mongolian plateau | Both | English |
| Teddy | Gift of God | Male | Greek |
| Tegan | Beautiful | Male | Welsh |
| Tempo | The speed or pace of a given piece or subsection thereof in musical terminology | Both | English |
| Teo | Gift of God | Male | Greek |
| Terra | Earth, soil | Female | Latin |
| Teva | Nature | Unisex | Hebrew |
| Thalia | To flourish | Female | Greek |
| Thunder | Stormy Tempered | Unisex | English |
| Tia | Princess Or Crowned One | Female | English |
| Tiger | Tiger | Unisex | English |
| Timber | Wood used as a building material. Also timber-wolf. | Unisex | English |
| Titan | Powerful big man | Unisex | Greek |
| Titus | Of The Giants | Male | Latin |
| Toby | God is good | Unisex | Hebrew |
| Todd | Fox | Male | English |
| Toffee | A hard brown, chewy candy | Unisex | English |
| Togo | Country on the Gulf of Guinea in the west of Africa | Both | African |
| Tucker | Someone who folds cloth | Male | English |
| Tula | An industrial city and the administrative center of Tula Oblast, Russia | Female | Russian |
| Tulin | Halo around the moon | Both | Turkish |
| Tundra | Treeless mountain tract | Both | Russian |
| Turbo | Driven by a turbine - turbocharged | Unisex | English |
| Tylor | Tile maker | Male | English |