class="note" | |- class="vcard" | class="fn org" | Trefor | class="adr" | Isle of Anglesey | class="note" | | class="note" | |- class="vcard" | class="fn org" | Trefor | class="adr" | Gwynedd | class="note" | | class="note" | |- class="vcard" | class="fn org" | Treforda | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Treforest | class="adr" | Rhondda, Cynon, Taff | class="note" | | class="note" | |- class="vcard" | class="fn org" | Treforgan | class="adr" | Ceredigion | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tre-Forgan | class="adr" | Neath Port Talbot | class="note" | | class="note" | |- class="vcard" | class="fn org" | Trefriw | class="adr" | Conwy | class="note" | | class="note" | |- class="vcard" | class="fn org" | Trefrize | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tref-y-Clawdd | class="adr" | Powys | class="note" | | class="note" | |- class="vcard" | class="fn org" | Trefynwy | class="adr" | Monmouthshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregada | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregadgwith | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregadillett | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tre-gagle | class="adr" | Monmouthshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregaian | class="adr" | Isle of Anglesey | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregajorran | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregamere | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregardock | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregare | class="adr" | Monmouthshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregargus | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregarland | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregarlandbridge | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregarne | class="adr" | Cornwall | class="note" | | class="note"