| Welsh baby names begining from T |
| Tad |
 | Father. |
| Tadd |
| Father. |
| Taffy |
| Diminutive of David: Beloved or friend, from the Hebrew. Sixth century St David (or Dewi) was patron saint of Wales. |
| Talaith |
 | Diadem. |
| Talar |
| From the headland in the field. |
| Taliesin |
| Handsome; radiant brow. 6th century Welsh bard and author of the Book of Taliesin. |
| Talyessin |
| Handsome. |
| Tangwen |
| Legendary daughter of Gweir. |
| Taren |
 | Thunder. |
| Tarian |
| Shield. |
| Tarran |
| Thunder. |
| Tarrant |
| Thunder. |
| Tarren |
| From the knoll. |
| Taryn |
| Thunder. |
| Tegan |
| Beautiful. |
| Tegwan |
| Beautiful and fair. |
| Teithi |
| Legendary son of Gwynnan. |
| Teleri |
| Legendary daughter of Peul. |
| Telyn |
| Harp. |
| Teregud |
| Legendary son of Iaen. |
| Terrwyn |
| Brave. |
| Tewdwr |
| God's gift. |
| Timotheus |
| Welsh form of Timothy 'God given'. |
| Tomos |
| Twin. |
| Toreth |
| Abundant. |
| Torlan |
| From the river bank. |
| Torri |
| Break. |
| Trahaym |
| Incredibly strong. |
| Trahern |
| Incredibly strong. |
| Tramaine |
| From the big town. |
| Traveon |
| Fair town. Abbreviation of Trevelyan. |
| Travion |
| Fair town. Abbreviation of Trevelyan. |
| Travon. trevon |
| Fair town. Abbreviation of Trevelyan. |
| Trefor |
| Variant of Trevor: Large village; goodly town. |
| Tremain |
| From the big town. |
| Tremaine |
| From the big town. |
| Tremayne |
| Lives in the house by the rock. |
| Tremen |
| Lives in the house by the rock. |
| Trent |
| Dwells near the rapid stream. |
| Trev |
| Diminutive of Trevor: Large village; goodly town. |
| Trevan |
| Fair town. Abbreviation of Trevelyan. |
| Trevelian |
| From Elian's home. |
| Trevelyan |
| From Elian's home. |
| Treven |
| Fair town. Abbreviation of Trevelyan. |
| Trevian |
| Fair town. Abbreviation of Trevelyan. |
| Trevion |
| Fair town. Abbreviation of Trevelyan. |
| Trevls |
| Variant of French surname and place-name Treves. |
| Trevonn |
| Fair town. Abbreviation of Trevelyan. |
| Trevor |
| Large village; goodly town. |
| Trevyn |
| Fair town. Abbreviation of Trevelyan. |
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