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	Aberconway	Caernarfonshire
Abercynffig	Aberkenfig	Glamorgan
Aberdâr	Aberdare	Glamorgan
Aberdaugleddau	Milford Haven	Pembrokeshire
Aberdyfi	Aberdovey	Merionethshire
Abergwaun	Fishguard	Pembrokeshire
Aberhonddu	Brecon	Breconshire
Abermaw	Barmouth	Merionethshire
Aberpennar	Mountain Ash	Glamorgan
Aberriw	Berriew	Montgomershire
Abertawe	Swansea	Glamorgan
Aberteifi	Cardigan (the town)	Cardiganshire
Arbeth	Narbeth	Pembrokeshire
Bae Colwyn	Colwyn Bay	Denbighshire
Bangor is y Coed	Bangor on Dee	Flintshire
Biwmares	Beaumaris	Anglesey
Blaenafon	Blaenavon	Monmouthshire
Brychdyn	Broughton	Flintshire
Brynbuga	Usk	Monmouthshire
Bwcle	Buckley	Flintshire
Caer	Chester	Cheshire
Caerdydd	Cardiff	Glamorgan
Caerfyrddin	Carmarthen	Carmarthenshire
Caerffili	Caerphilly	Glamorgan
Caergybi	Holyhead	Anglesey
Caernarfon	Carnarvon or Caernarvon	Caernarfonshire
Cas-gwent	Chepstow	Monmouthshire
Casnewydd	Newport	Monmouthshire
Castellnewydd Emlyn	Newcastle Emlyn	Carmarthenshire
Castell-nedd	Neath	Glamorgan
Cegidfa	Guilsfield	Montgomeryshire
Cei Conna	Connah's Quay	Flintshire
Ceredigion or Sir Aberteifi	Cardiganshire	Cardiganshire
Chwitffordd	Whitford	Flintshire
Coed-duon	Blackwood	Monmouthshire
Coed Llai	Leeswood	Flintshire
Conwy	Conway	Caernarfonshire
Croesesgob	Bistre	Flintshire
Croesoswallt	Oswestry	Shropshire
Crucywel	Crickhowell	Breconshire
Cydweli	Kidwelly	Carmarthenshire
Dinbych	Denbigh	Denbighshire
Dinbych y Pysgod	Tenby	Pembrokeshire
Diserth	Dyserth	Flintshire
Trenewydd or Y Drenewydd	Newtown	Montgomeryshire
Erbistog	Erbistock	Denbighshire
Eryri	Snowdonia	-
Ffordun	Forden	Montgomeryshire
Gallt Melyd	Meliden	Flintshire
Glanyrafon	Southsea	Denbighshire
Glyn Ebwy	Ebbw Vale	Monmouthshire
Helygain	Halkyn	Flintshire
Iscoed	Iscoyd or Whitewell	Flintshire
Llai	Llay	Denbighshire
Llanandras	Presteigne	Radnorshire
Llanbedr Pont Steffan	Lampeter	Cardiganshire
Llandrindod	Llandrindod Wells	Radnorshire
Llansansiôr	St. George	Denbighshire
Llandysilio yn Iâl	Llantysilio	Denbighshire
Llanelwy	St. Asaph	Flintshire
Llanelli	Llanelly	Carmarthenshire
Llaneurgain	Northop	Flintshire
Llanfair ym Muallt	Builth Wells	Radnorshire
Llanfarthin	St Martins	Shropshire
Llanfor	Llanfawr	Merionethshire
Llanilltud Fawr	Llantwit Major	Glamorgan
Llanisien	Llanishen	Glamorgan
Llannerch Banna	Penley	Flintshire
Llanymddyfri	Llandovery	Breconshire
Llwchwr	Loughor	Glamorgan
Llys Bedydd	Bettisfield	Flintshire
Maesglas	Greenfield	Flintshire
Maesyfed	New Radnor	Radnorshire
Marchwiail	Marchwiel	Denbighshire
Merthyr Tudful	Merthyr Tydfil	Glamorgan
Mwynglawdd	Minera	Denbighshire
Nercwys	Nerquis	Flintshire
Niwbwrch	Newborough	Anglesey
Owrtyn	Overton	Flintshire
Penarlâg	Hawarden	Flintshire
Penbedw	Birkenhead	Cheshire
Penfro	Pembroke	Pembrokeshire
Penystrywaid	Penstrowed	Montgomeryshire
Pentrehobyn	Pentrobin	Flintshire
Pentre Moch	Northop Hall	Flintshire
Pen-y-bont (ar Ogwr)	Bridgend	Glamorgan
Ponciau	Ponkey	Denbighshire
Porffordd	Pulford	Cheshire
Porthaethwy	Menai Bridge	Anglesey
Porthmadog	Portmadoc	Caernarfonshire
Porth Tywyn	Burry Port	Carmarthenshire
Rhaeadr	Rhayader	Radnorshire
Rhaglan	Raglan	Monmouthshire
Rhedynfre	Farndon	Cheshire
Rhiwabon	Ruabon (or Rhuabon)	Denbighshire
Rhuthun	Ruthin	Denbighshire
Rhydaman	Ammanford	Carmarthenshire
Rhymni	Rhymney	Monmouthshire
Trefaldwyn	Montgomery	Montgomeryshire
Trefalun	Allington	Denbighshire
Trefyclo	Knighton	Radnorshire
Trefynwy	Monmouth	Monmouthshire
Trefdraeth	Newport (Pembrokeshire)	Pembrokeshire
Treffynnon	Holywell	Flintshire
Trelawnyd	Newmarket	Flintshire
Treorci	Treorchy	Glamorgan
Tyddewi	St. David's	Pembrokeshire
Wrecsam	Wrexham	Denbighshire
Wryddymbre	Worthenbury	Denbighshire
Y Bers	Berse or Bersham	Denbighshire
Y Bontfaen	Cowbridge	Glamorgan
Y Drenewydd	Newtown	Montgomeryshire
Y Felinheli	Port Dinorwic	Caernarfonshire
Y Fenni	Abergavenny	Monmouthshire
Y Fflint	Flint	Flintshire
Y Gelli	Hay-on-Wye	Radnorshire
Yr Hôb	Hope	Flintshire
Y Trallwng	Welshpool	Montgomeryshire
Y Waun	Chirk	Denbighshire
Yr Amwythig	Shrewsbury	Shropshire
Yr Orsedd	Rossett	Denbighshire
Yr Wyddfa	Snowdon	-
Yr Wyddgrug	Mold	Flintshire
Ynys Enlli	Bardsey Island	Caernarfonshire
Ynys Môn	Anglesey	Anglesey