Welsh Place Name List
Many historic sources, such as censuses, civil registration documents or wills may give different versions of a place name and be prepared for some strange spelling variations!
| Welsh Name | English Name | Historic County |
|---|---|---|
| Aberafan | Aberavon | Glamorgan |
| Aberconwy | Conway | Caernarfonshire |
| Abercynffig | Aberkenfig | Glamorgan |
| Aberdâr | Aberdare | Glamorgan |
| Aberdaugleddau | Milford Haven | Pembrokeshire |
| Aberdyfi | ||
| Abergwaun | Fishguard | Pembrokeshire |
| Aberhonddu | Brecon | Breconshire |
| Abermaw | Barmouth | Merionethshire |
| Aberpennar | Mountain Ash | Glamorgan |
| Aberriw | Berriew | Montgomershire |
| Abertawe | Swansea | Glamorgan |
| Aberteifi | Cardigan (town) | Cardiganshire |
| Arbeth | Narbeth | Pembrokeshire |
| Bae Colwyn | Colwyn Bay | Denbigshire |
| Bangor Is Y Coed | Bangor On Dee | Flintshire |
| Bimwares | Beaumaris | Anglesey |
| Blaenafon | Blaenavon | Monmouthshire |
| Brychdyn | Broughton | Flintshire |
| Brynbuga | Usk | Monmouthshire |
| Bwcle | Buckley | Flintshire |
| Caerdydd | Cardiff | Glamorgan |
| Caerfyrddin | Carmarthen | Carmartheshire |
| Caerffili | Caerphilly | Glamorgan |
| Caergybi | Holyhead | Anglesey |
| Caernarfon | Caernarfonshire | |
| Cas-gwent | Chepstow | Monmoutshire |
| Casnewydd | Newport | Monmouthshire |
| Castellnewydd Emlyn | Newcastle Emlyn | Carmarthenshire |
| Castell-nedd | Neath | Glamorgan |
| Cegidfa | Guilsfield | Montgomery |
| Cei Conna | Connah's Quay | Flint |
| Ceredigion or Sir Aberteifi | Cardiganshire | |
| Chwitffordd | Whitford | Flint |
| Coed-duon | Blackwood | |
| Coed Llai | Leeswood | |
| Conwy | ||
| Croesgob | Bistre | Flint |
| Crucywel | Crickhowell | |
| Cydweli | Kidwelly | |
| Dinbych | Denbigh | Denbigh |
| Dinbych y Pysgod | Tenby | Pembroke |
| Drenewydd | Newtown | Montgomery |
| Erbistog | Erbistock | Denbigh and Flint |
| Eryri | Snowdonia | |
| Ffordun | Forden | Montgomery |
| Gallt Melyd | Meliden | Flint |
| Glyn Ebwy | Ebbw Vale | |
| Gwyrddymp | Worthenbury | Flint |
| Helygain | Halkyn | Flint |
| Llai | Llay | Denbigh |
| Llanandras | Presteigne | |
| Llan Sain | St. George | Denbigh |
| Llanbedr Pont Steffan | Lampeter | |
| Llandrindod | Llandrindod Wells | |
| Llandysilio Yn Ial | Llantysilio | Denbigh |
| Llanelwy | St. Asaph | Flint and Denbigh |
| Llanelli | ||
| Llaneurgain | Northop | Flint |
| Llanfair-ym-muallt | Builth Wells | |
| Llanfor | ||
| Llanilltud Fawr | Llantwit Major | |
| Llanisien | Llanishen | |
| Llannerch Banna | Penley | Flint |
| Llanymddyfri | Llandovery | |
| Llwchwr | ||
| Maesglas | Greenfield | Flint |
| Maesyfed | New Radnor | |
| Marchwiail | Marchwiel | Denbigh |
| Merthyr Tudful | Merthyr Tydfil | Glamorgan |
| Mwynglawdd | Minera | Denbigh |
| Niwbwrch | Newborough | Gwynedd |
| Owrtyn | Overton | Flint |
| Penarlâg | Hawarden | Flint |
| Penfro | Pembroke | Pembroke |
| Penstrywaid | Penstrowed | Montgomery |
| Pentrehobyn | Pentrobin | Flint |
| Pen-y-bont (ar Ogwr) | Bridgend | |
| Ponciau | ||
| Porthaethwy | Menai Bridge | |
| Porthmadog | ||
| Porth Tywyn | Burry Port | |
| Rhaeadr | Rhayader | |
| Rhaglan | Raglan | |
| Rhiwabon | Ruabon (or |
Denbigh |
| Rhuthun | Ruthin | Denbigh |
| Rhydaman | Ammanford | |
| Rhymni | Rhymney | |
| Trefaldwyn | Montgomery | |
| Trefalun | Allington | |
| Treffynon | Holywell | Flint |
| Trefyclo | Knighton | |
| Trefynwy | Monmouth | Monmouth |
| Trefdraeth | Newport (Pembrokeshire) | Pembroke |
| Treffynnon | Holywell | Flint |
| Trelawnyd | ||
| Treorci | Treorchy | |
| Tyddewi | St. David's | Pembroke |
| Wrecsam | Wrexham | Denbigh |
| Y Bers | Bersham | |
| Y Bers | Berse | Denbigh |
| Y Bontfaen | Cowbridge | |
| Y Ddiserth | Dyserth | Flint |
| Y Drenewydd | Newtown | |
| Y Felinheli | ||
| Y Fenni | Abergavenny | |
| Y Fflint | Flint | Flint |
| Y Gelli | Hay-on-Wye | |
| Y Groesffordd | Gresford | Denbigh |
| Yr Hôb | Hope | Flint |
| Y Trallwng | Welshpool | Montgomery |
| Y Waun | Chirk | Denbigh |
| Yr Orsedd | Rossett | Denbigh |
| Yr Wyddfa | Snowdon | |
| Yr Wyddgrug | Mold | Flint |
| Ynys Enlli | Bardsey Island | |
| Ynys Môn | (Isle of) Anglesey | Anglesey |