| Name | Meaning | Gender | Origin |
|---|
| Thomas | Twin | Male | Aramaic |
| Thor | Thunder | Male | Norse |
| Tiger | Tiger | Unisex | English |
| Tillie | Powerful battler | Female | German |
| Tisha | Joy, Gladness | Female | English |
| Titan | Powerful big man | Unisex | Greek |
| Titus | Of The Giants | Male | Latin |
| Todd | Fox | Male | English |
| Tosh | Contentment | Unisex | Indian |
| Trace | Thracius' place | Unisex | English |
| Trahaearn | Great iron | Male | Welsh |
| Travis | Toll collector | Male | French |
| Treasa | Strength | Female | Gaelic |
| Trenton | Trent's town | Male | English |
| Trevor | Large settlement | Male | Welsh |
| Tristan | Tumult | Male | Gaelic |
| Trudy | Strength of the spear | Female | Germanic |
| Trumble | Strong Or Bold | Male | English |
| Tucker | Someone who folds cloth | Male | English |
| Tully | Prince of the people | Female | Gaelic |
| Tyler | Tile maker | Male | English |
| Tyrone | Land of the noble | Male | Gaelic |
| Tyson | Son of Dye | Male | English |
| Uilleam | Will, desire + helmet, protection | Male | Germanic |
| Ulises | Walker | Male | Greek |
| Ull | Glory | Unisex | Norse |
| Ulla | Prosperity, fortune, power | Female | German |
| Ulric | Prosperity, fortune, power | Male | German |
| Ulrich | Powerful through his inheritance | Male | Germanic |
| Ulysses | Walker | Male | Greek |