| |- class="vcard" | class="fn org" | Tregaron | class="adr" | Ceredigion | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregarrick Mill | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregath | class="adr" | Gwynedd | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregatillian | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregatta | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregavarah | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregear | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregeare | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregeiriog | class="adr" | Wrexham | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregele | class="adr" | Isle of Anglesey | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregellist | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregeseal | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregew | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tre-Gibbon | class="adr" | Rhondda, Cynon, Taff | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregidden | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Treginnis | class="adr" | Pembrokeshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Treglemais | class="adr" | Pembrokeshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregolls | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregona | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregonce | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregonetha | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregonna | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" | class="fn org" | Tregonning | class="adr" | Cornwall | class="note" | | class="note" | |- class="vcard" |