| Name | Meaning | Details |
|---|---|---|
| Trejo | From Trexo | View Details |
| Tremain | From The Town Of The Stone | View Details |
| Trenton | From The Town By The River Trent | View Details |
| Trevain | Farm By The Water | View Details |
| Trevelian | From The Homestead Of Elian | View Details |
| Trevor | From The Big Village | View Details |
| Trilby | "From Thorolfs Farm" | View Details |
| Tullio | From The Tullius Family | View Details |
| Tully | From The Little Hill | View Details |
| Ty | From The Land Of Eoghan | View Details |
| Tyran | From The Land Of Eoghan | View Details |
| Tyrone | From The Land Of The Yew Tree | View Details |
| Udell | From The Yew Valley | View Details |
| Ural | From The Ural Mountains | View Details |
| Urbain | From The City | View Details |