Trelogan

Trelydan

Tremadog

Tremain

Tremeirchion

Tremorfa

Treoes

Treorchy

Treorchy / Treorci

Treorci

Treowen

Trerhyngyll

Tresaith

Trethomas

Tretio

Treuddyn

Trevalyn

Trevaughan

Trevethin

Trevor

Trewern

Trimsaran

Trinant

Troedyrhiw

Trofarth

Tudweiliog

Tumble / Y Tymbl

Two Locks

Twyn

Twynllanan

Twyn Yr Odyn

Twyn Y Sheriff Twynysheriff

Ty Canol

Tycroes

Tycrwyn

Tylorstown

Tylwch

Ty Nant

Tynewydd

Tyntetown

Tynygongl

Tynygraig

Tythegston

Undy / Gwndy

Upper Bangor

Upper Boat

Upper Brynamman

Upper Chapel / Capel Uchaf