| Name | Meaning | Gender | Origin |
|---|
| Tadg | Poet | Boy | Irish |
| Tadhg | Poet | Boy | Irish |
| Taffy | Beloved | Girl | Welsh |
| Tam | Twin | Boy | |
| Tamas | Twin. | Boy | Irish |
| Tamhas | Twin | Boy | |
| Tamnais | Twin | Boy | |
| Tara | Hill | Girl | Irish |
| Tasgall | Cauldron of the Gods | Unisex | Norse |
| Taveon | Twin | Boy | |
| Tavey | Twin | Boy | |
| Tavia | Twin | Girl | Latin |
| Tavin | Twin | Boy | |
| Tavio | Twin | Boy | |
| Tavion | Twin | Boy | |
| Tavis | Twin | Boy | |
| Tavish | Twin | Boy | |
| Tavon | Twin | Boy | |
| Teagan | Attractive | Girl | Welsh |
| Tearlach | Instigator, Matured | Boy | Irish |
| Tearlag | Instigator, Matured | Girl | |
| Teasag | God is gracious | Girl | Gaelic |
| Teva | Twin | Girl | |
| Tevin | Twin | Boy | |
| Tevis | Twin | Boy | |
| Thane | Knight's attendant | Boy | Old English |
| Tira | Battle | Girl | Scandinavian |
| Todd | Fox | Boy | Old English |
| Tomachan | Twin | Boy | |
| Tomag | Twin | Boy | |
| Tor | Victory, Castle, Watchtower | Boy | Old English |
| Toran | Victory, Castle, Watchtower | Boy | Irish |
| Torean | Victory, Castle, Watchtower | Boy | Irish |
| Toren | Victory, Castle, Watchtower | Boy | Irish |
| Torence | Victory, Castle, Watchtower | Boy | Irish |
| Torey | Victory, Castle, Watchtower | Unisex | Old English |
| Torin | Victory, Castle, Watchtower | Boy | Irish |
| Torion | Victory, Castle, Watchtower | Boy | Irish |
| Torra | Victory, Castle, Watchtower | Girl | Old English |
| Torran | Victory, Castle, Watchtower | Boy | Irish |
| Torrance | Victory, Castle, Watchtower | Boy | Irish |
| Torree | Victory, Castle, Watchtower | Girl | Old English |
| Torrence | Victory, Castle, Watchtower | Boy | Irish |
| Torrey | Victory, Castle, Watchtower | Boy | Old English |
| Torri | Victory, Castle, Watchtower | Girl | Old English |
| Torrian | Victory, Castle, Watchtower | Boy | Old English |
| Torrie | Victory, Castle, Watchtower | Boy | Old English |
| Torry | Victory, Castle, Watchtower | Boy | Old English |
| Tory | Victory, Castle, Watchtower | Boy | Old English |
| Trahern | Strong as Iron | Boy | Welsh |
| Tramaine | House of stone | Boy | |
| Treva | Homestead | Girl | Welsh |
| Trevonna | Homestead | Girl | Welsh |
| Tristan | Bold | Boy | Welsh |
| Tyra | Battle | Girl | Scandinavian |
| Tyree | Island Dweller | Boy | |