Place Names in Welsh and English
| Welsh | English |
| Abatycwmhir | Abbey Cwmhir |
| Aberafan | Aberavon |
| Aber-bach | Little Haven |
| Aberbargod | Aberbargoed |
| Abercastell | Abercastle |
| Abercynffig | Aberkenfig |
| Abercynnon | Abercynon |
| Aberdar | Aberdare |
| Aberdaugleddau | Milford Haven |
| Aberddawan | Aberthaw |
| Aberdyfi | Aberdovey |
| Aberffro | Aberffraw |
| Aberglasne | Aberglasney |
| Abergwaun | Fishguard |
| Abergwynfi | Afan Vale |
| Aberhonddu | Brecon |
| Aberllydan | Broad Haven |
| Aberllynfi | Three Cocks |
| Abermawr | Barmouth |
| Abermiwl | Abermule |
| Aberogwr | Ogmore-by-Sea |
| Aberpennar | Mountain Ash |
| Aberriw | Berriew |
| Abertawe | Swansea |
| Aberteifi | Cardigan |
| Abertyleri | Abertillery |
| Allt-yr-ynn | Allt-yr-yn |
| Angorfa Abergele | Abergele Roads |
| Arberth | Narberth |
| Bae Colwyn | Colwyn Bay |
| Bangor Is-coed | Bangor-on-Dee |
| Bargod | Bargoed |
| Bedwellte | Bedwellty |
| Begeildy | Beguildy |
| Begeli | Begelly |
| Belffast | Belfast |
| Bers | Bersham |
| Biwlah | Beulah |
| Biwmares | Beaumaris |
| Bochrwyd | Boughrood |
| Bont-Faen | Pontfaen |
| Breudeth | Brawdy |
| Brynbuga | Usk |
| Bryncwtin | Milton |
| Bryste | Bristol |
| Bulston | Boulston |
| Bwcle | Buckley |
| Bwlch-y-ffridd | Bwlch y Plain |
| Caerdydd | Cardiff |
| Caerfaddon | Bath |
| Caerffili | Caerphilly |
| Caerfyrddin | Carmarthen |
| Caergaint | Canterbury |
| Caergrawnt | Cambridge |
| Caergybi | Holyhead |
| Caeriw | Carew |
| Caerliwelydd | Carlisle |
| Caerlleon | Chester |
| Caerllion | Caerleon |
| Caerloyw | Gloucester |
| Caerlyr | Leicester |
| Caerwrangon | Worcester |
| Caerwynt | Winchester |
| Caerwysg | Exeter |
| Camros | Camrose |
| Capel Isaf | Lower Chapel |
| Capel Newydd | Newchapel |
| Capel Uchaf | Upper Chapel |
| Cas-blaidd | Wolfs Castle |
| Cas-bwnsh | Pointz Castle |
| Cas-fuwch | Castleblythe |
| Casgob | Cascob |
| Cas-gwent | Chepstow |
| Cas-lai | Hayscastle |
| Casllwchwr | Loughor |
| Cas-mael | Puncheston |
| Casmorys | Castle Morris |
| Casnewydd | Newport (Gwent) |
| Casnewydd-bach | Little Newcastle |
| Castell Caereinion | Castle Caereinion |
| Castell Morris | Castlemorris |
| Castell -nedd | Neath |
| Castell Paen | Painscastle |
| Castell-Gwalchmai | Walwyns Castle |
| Castellhenri | Henrys Moat |
| Castellmartin | Castlemartin |
| Castellnewydd Emlyn | Newcastle Emlyn |
| Cas-wis | Wiston |
| Cefn Mabli | Cefn Mably |
| Cefn y Pant | Pantside |
| Cegidfa | Guilsfield |
| Cei Connah | Connahs Quay |
| Cei Lawrenni | Lawrenny Quay |
| Ceinewydd | New Quay |
| Ceir Trallwng | Pool Quay |
| Ceri | Kerry |
| Cernyw | Cornwall |
| Cilfai | Kilvey |
| Cil-Garon | Cilgerran |
| Cilgeti | Kilgetty |
| Cleirwy | Clyro |
| Cletwr | Clatter |
| Clunderwen | Clynderwen |
| Cnwclas | Knucklas |
| Coed-duon | Blackwood |
| Coedelai | Coedely |
| Coed-y-Brennin | Kingswood |
| Coety | Coity |
| Colwinstone | Tregolwyn |
| Cor y Cewri | Stonehenge |
| Corc | Cork |
| Crai | Cray |
| Craigcefnparc | Graig Cefn Parc |
| Creseli | Cresselly |
| Croes Cas-lai | Haycastle Cross |
| Croes Poyston | Poyston Cross |
| Cronwern | Crunwear |
| Crucadarn | Crickadarn |
| Crughywel | Crickhowell |
| Crymlyn | Crumlin |
| Cryndal | Crundale |
| Crynwedd | Crinow |
| Cryw Green | Crewgreen |
| Cwm Ciddi | Cwm Ciddy |
| Cwm Clydach | Clydach Vale |
| Cwmafan | Cwmavon |
| Cyfronnydd | Cyfronydd |
| Cynffig | Kenfig |
| Derwen-fawr | Broad Oak |
| Derwen-gam | Oakford |
| Dinbych | Denbigh |
| Dinbych-y-pysgod | Tenby |
| Doc Penfro | Pembroke Dock |
| Dolydd Trefore | Mornington Meadows |
| Draenen Pen-y-graig | Thornhill |
| Drenewydd yn Notais | Newton Nottage |
| Dulyn | Dublin |
| Dutlas | Duthlas |
| Dwr Cwmwdig | Cwmwdig Water |
| Dyfnaint | Devon |
| Efrog | York |
| Eglwys Fair-y-Mynydd | Saint Mary Hill |
| Eglwys Wythwr | Monington |
| Eglwys-Eirw | Eglwyswrw |
| Einsiob | Evenjobb |
| Enaur Glyn | Energlyn |
| Erbistog | Erbistock |
| Erwyd | Erwood |
| Ewenni | Ewenny |
| Faenor | Vaynor |
| Faenor Ucha | Brooks |
| Felin Newydd | New Mills |
| Felindre | Velindre |
| Felinganol | Middle Mill |
| Fenis | Venice |
| Ffont-y-gari | Fontygary |
| Ffordun | Forden |
| Ffwl-y-mwn | Fonmon |
| Ffwrnais | Furnace |
| Ffynnon-groes | Crosswell |
| Gelli Aur | Golden Grove |
| Glandwr | Landore |
| Glantwymyn | Cemmaes Road |
| Glanyfferi | Ferryside |
| Glan-y-mor | Seaside |
| Glynebwy | Ebbw Vale |
| Glyn-nedd | Glyn Neath |
| Glynrhedynog | Ferndale |
| Graig-y-rhaca | Graig-y-Rhacca |
| Great Trefgarn | Treffgarne |
| Gresffordd | Gresford |
| Gwenfo | Wenvoe |
| Gwlad yr Haf | Somerset |
| Hawy | Howey |
| Hendy-gwyn ar Daf | Whitland |
| Hwlffordd | Haverfordwest |
| Ismiston | Uzmaston |
| Lacharn | Laugharne |
| Lawrenni | Lawrenny |
| Lecwydd | Leckwith |
| Lerpwl | Liverpool |
| Llaethdy | Llaithddu |
| Llanandras | Presteigne |
| Llananfan-Fawr | Llanafan-fawr |
| Llanbedr Felffre | Lampeter Velfrey |
| Llanbedr Pont Steffan | Lampeter |
| Llanbedr-y-Fro | Peterston-super-Ely |
| Llanbydderi | Llanbethery |
| Llancatal | Llancadle |
| Llandaf | Llandaff |
| Llanddewi Felffre | Llanddewi Velfrey |
| Llanddewi yn Hwytyn | Whitton |
| Llanddunwyd | Welsh Saint Donats |
| Llandegle | Llandegley |
| Llandochau | Llandough |
| Llandre | Llandre |
| Llandrindod | Llandrindod Wells |
| Llandudoch | Saint Dogmaels |
| Llandudoch | St Dogmaels |
| Llandudwg | Tythegston |
| Llandw | Llandow |
| Llandyfai | Lamphey |
| Llandysillio yn-Nyfed | Llandissilio |
| Llaneilfyw | Saint Elvis |
| Llaneirwg | Saint Mellons |
| Llanelwey | Saint Asaph |
| Llanelwy | Llanelieu |
| Llanerch Panna | Penley |
| Llanerch-aur | Llanychaer |
| Llanerch-lwydog | Llanychlwydog |
| Llan-faes | Llanmaes |
| Llanfair | Saint Mary Church |
| Llan-fair | New Hedges |
| Llanfair Llythyfnwg | Gladestry |
| Llanfair-ym-Muallt | Builth Wells |
| Llanffa | Llampha |
| Llanfihangel y Bont-faen | Llanmihangel |
| Llanfihangel y Pwll | Michaelston-le-Pit |
| Llanfihangel-ar-Elai | Michaelston-super-Ely |
| Llanfihangel-dyffryn Arwy | Michaelchurch on Arrow |
| Llanfihangel-ynys-Afan | Michaelston-super-Avon |
| Llanfleiddan | Llanbleddian |
| Llanfrynach | Llanfrynfach |
| Llangadwaldr | Bishpool |
| Llangammarch | Llangammarch Wells |
| Llangatwg | Llangattock |
| Llangatwg Nedd | Cadoxton (Neath) |
| Llan-Golman | Capel Colman |
| Llangrall | Coychurch |
| Llangrwyney | Glangrwyney |
| Llangynllo | Llangunllo |
| Llangynydd | Llangennith |
| Llanhari | Llanharry |
| Llanhuadain | Llawhaden |
| Llanhywel | Llanhowel |
| Llanilltud | Ilston |
| Llanilltud Faerdre | Llantwit Fadre |
| Llanilltud Fawr | Llantwit Major |
| Llanisan-yn-Rhos | Saint Ishmaels |
| Llanisan-yn-Rhos | St Ishmaels |
| Llanllyr | Llanyre |
| Llan-lwy | Llandeloy |
| Llannewydd | Newchurch |
| Llanrhath | Amroth |
| Llan-Rhidian | Llanreithan |
| Llansanffraid-ar-Elai | Saint Brides-super-Ely |
| Llansanffraid-ar-Ogwr | Saint Brides Minor |
| Llansantffraid | Llansantffraed |
| Llansantffraid-Cwmdeuddwr | Llansantffraed-Cwmdeuddwr |
| Llansantffraid-yn-Elfael | Elvel |
| Llansanwyr | Llansannor |
| Llansawel | Nriton Ferry |
| Llansteffan | Llanstephan |
| Llantwyd | Llantood |
| Llantydewi | Saint Dogwells |
| Llanussyllt | Saundersfoot |
| Llan-Vrynach | Llanfyrnach |
| Llanwrtyd | Llanwrtyd Wells |
| Llan-Wyndav | Llanwnda |
| Llanwynno | Llanwonno |
| Llanymddyfri | Llandovery |
| Llanyrnewydd | Penclawdd |
| Llan-y-tair-mair | Knelston |
| Lloed | Leeds |
| Lloegr | England |
| Llundain | London |
| Llwyneliddon | Saint Lythans |
| Llwynhelyg | Withybush |
| Llwyn-y-pia | Llwynpia |
| Llydaw | Brittany |
| Llyn Clywedog | Clywedog Lake |
| Llys-faen | Lisvane |
| Llys-Prawst | Newton North |
| Llyswyrny | Llysworney |
| Loch-fan | Lochvane |
| Maenorbyr | Manorbier |
| Maes Awyr Caerdydd | Cardiff Airport |
| Maes-y-cwmwr | Maesycwmmer |
| Maesyfed | New Radnor |
| Manceinon | Manchester |
| Manerawen | Manorowen |
| Marcroes | Marcross |
| Meisgyn | Miskin |
| Melin Ifan Ddu | Blackmill |
| Meli-y-Ddol | Melin-y-Ddol |
| Merthyr | Mathry |
| Merthyr Tudful | Merthyr Tydfil |
| Monach-log Du | Mynachlog-ddu |
| Monkton | Mounton |
| Mwmbwls | Mumbles |
| Mwynglawdd | Minera |
| Mynachlog Nedd | Neath Abbey |
| Mynwar | Minwear |
| Mynwar | Mynwear |
| Mynwent y Crynwyr | Quakers Yard |
| Mynyddcynffig | Kenfig Hill |
| Mynydd-y-garreg | Mynyddygarreg |
| Nangle | Angle |
| Nanhyfer | Nevern |
| Niwbwrch | Newborough |
| Niwgwl | Newgale |
| Ochr Chwith | Ochrwyth |
| Parc Churchill | Churchill Park |
| Parc Lansbury | Lansbury Park |
| Pedair-hewl | Four Roads |
| Pelcam | Pelcomb |
| Pen Caer | Strumble Head |
| Pen Gofan | Saint Govans Head |
| Penalun | Penally |
| Penarlag | Hawarden |
| Penbedw | Birkenhead |
| Penbiri | Pen Berry |
| Penblewyn | Penblewin |
| Pendeulwyn | Pendoylan |
| Penffordd-Las | Staylittle |
| Penfro | Pembroke |
| Penmaendewi | Saint Davids Head |
| Penmarc | Penmark |
| Pennat Melangell | Pennant Melangell |
| Pen-prysg | Pen-Prisk |
| Penrhyn | Gower |
| Pentre Eglwys | Church Village |
| Pentref Elan | Elan Village |
| Pentrer Beirdd | Pentrebeirdd |
| Pentrer-felin | Pentrefelin |
| Pentywyn | Pendine |
| Pen-y-bont | Bridgend |
| Pen-y-Coedcae | Pencoedcae |
| Pictwn | Picton Ferry |
| Plas Trelydan | Trelydan |
| Pont Arberth | Narberth Bridge |
| Pont Sion Norton | Pontshonnorton |
| Pontarfynach | Devils Bridge |
| Pontfadlen | Merlins Bridge |
| Pontlan-fraith | Pontllanfraith |
| Pontneddfechan | Pontneathvaughan |
| Pontnewydd ar Wy | Newbridge on Wye |
| Pontsenni | Sennybridge |
| Pont-y-meistr | Pontymister |
| Pont-y-pwl | Pontypool |
| Porth Tywyn | Burry Port |
| Porthaethwy | Menai Bridge |
| Porthceri | Porthkerry |
| Post-mawr | Synod Inn |
| Pump-hewl | Five Roads |
| Radur | Radyr |
| Resolfen | Resolven |
| Reynalton | Reynoldston |
| Rhaeadr Gwy | Rhayader |
| Rhisga | Risca |
| Rhiw r Perrau | Ruperra |
| Rhosfarced | Rosemarket |
| Rhosgoch | Rosebush |
| Rhos-goch | Red Roses |
| Rhos-y-crythor | Rhoscrowther |
| Rhufain | Rome |
| Rhuthun | Ruthin |
| Rhydaman | Ammanford |
| Rhydgaled | Chancery |
| Rhydodyn | Edwinsford |
| Rhydri | Rudry |
| Rhydychen | Oxford |
| Rhymni | Rhymney |
| Robeston East | Robeston Wathen |
| Rydberth | Redberth |
| Sain Dunwyd | Saint Donats |
| Sain Ffagan | Saint Fagans |
| Sain Ffred | Saint Brides |
| Sain Nicolas | Saint Nicholas |
| Sain Pedrog | Saint Petrox |
| Sain Siorys | Saint George-super-Ely |
| Sain Tathan | Saint Athan |
| Saint Andras | Saint Andrews Major |
| Saint Hilari | Saint Hilary |
| Saint Ishel | Saint Issells |
| Saint-y-brid | Saint Brides Major |
| Sancler | St Clears |
| Sant Gofan | Saint Govans |
| Sgeti | Sketty |
| Sgiwen | Skewen |
| Sili | Sully |
| Silstwn | Gileston |
| Sir Benfro | Pembrokeshire |
| Sir Benfro Saesneg | Little England |
| Slebets | Slebech |
| Solfach | Solva |
| Solfach Isaf | Lower Solva |
| Solfach Uchaf | Upper Solva |
| Spital | Spittal |
| Stackpole Elidir | Stackpole Elidor |
| Stopio a Galw | Stop and Call |
| Sychdyn | Soughton |
| Talwrn Green | Tallarn Green |
| Tal-y-bont | Buttington |
| Talybont-ar-Wysg | Talybont-on-usk |
| Tal-y-garn | Talygarn |
| Talyllychau | Talley |
| Telbenny | Talbenny |
| Tre loan | Johnstown |
| Tre r Llai | Leighton |
| Treamlod | Ambleston |
| Trebannws | Trebanos |
| Trebefered | Boverton |
| Trecastell | Trecastle |
| Tredegar Newydd | New Tredegar |
| Tredemel | Templeton |
| Trefaldwyn | Montgomery |
| Trefanedd | Bolton |
| Trefaser | Asheston |
| Trefdraeth | Newport |
| Trefdraeth | Newport (Pembrokeshire) |
| Trefeca | Trefecca |
| Trefechan | Trevaughan |
| Trefelen | Bletherston |
| Trefeliot | Elliotstown |
| Trefflemin | Flemingston |
| Treffynnon | Cheltenham |
| Treffynnon | Holywell |
| Trefin | Trevine |
| Treforys | Morriston |
| Trefwrdan | Jordanston |
| Tref-y-clawdd | Knighton |
| Treganeithw | Knaveston |
| Treganna or Cantwn | Canton |
| Tregatwg | Cadoxton |
| Tregetin | Keeston |
| Tregolwyn | Colwinston |
| Tre-groes | Whitchurch |
| Tre-gwyr | Gowerton |
| Trelai | Ely |
| Trelales | Laleston |
| Treletert | Letterston |
| Tremarchog | St Nicholas |
| Treopert | Granston |
| Treorci | Treorchy |
| Treowman | Brimaston |
| Trephylip | Phillipstown |
| Trerhingyll | Trerhyngyll |
| Trericert | Rickeston |
| Tresalem | Robertstown |
| Tresign | Sigingstone |
| Tresimwn | Bonvilston |
| Tretomos | Trethomas |
| Tretwr | Tretower |
| Trewallter | Walterston |
| Trewen | Eweston |
| Trewiliam | Williamstown |
| Trewyddel | Moylegrove |
| Tycrwn | Tycrwyn |
| Tyddewi | Saint Davids |
| Tyddewi | St Davids |
| Tyllgoed | Fairwater |
| Tyndyrn | Tintern |
| Waltwn Dwyrain | Walton East |
| Waltwn Gorllewin | Walton West |
| Wdig | Goodwick |
| Williamston Elinor | East Williamston |
| Wlster | Ulster |
| Wrecsam | Wrexham |
| Y Barri | Barry |
| Y Batel | Battle |
| Y Beifil | Bayvil |
| Y Bont-faen | Cowbridge |
| Y Borth Uchaf | Upper Borth |
| Y Castellnewydd | Newcastle |
| Y Clas-ar-Wy | Glasbury |
| Y Cocyd | Cockett |
| Y Creunant | Crynant |
| Y Drenewydd | Newtown |
| Y Fan | Van |
| Y Felinheli | Dinorwic |
| Y Fenni | Abergavenny |
| Y Fflint | Flint |
| Y Fford | Ford |
| Y Garn | Roch |
| Y Gelli | Hay-on-Wye |
| Y Graig | Graig |
| Y Groes | Crossgates |
| Y Mot | New Moat |
| Y Rhws | Rhoose |
| Y Sblot | Splott |
| Y Sgwar | Square and Compass |
| Y Strymbl | Strumble |
| Y Traeth Mawr | Whitesands |
| Y Trallwng | Welshpool |
| Y Waun | Chirk |
| Y Wig | Wick |
| Ynys Byr | Caldey Island |
| Ynys Dewi | Ramsay Island |
| Ynys Enlli | Bardsey |
| Ynys Gwales | Grassholm |
| Ynys Gwydrin | Glastonbury |
| Ynys Sgogwm | Skokholm Island |
| Ynys Sgomer | Skomer Island |
| Ynys Wair | Lundy |
| Ynys y Garn | Guernsey |
| Ynysoedd Erch | Orkney |
| Yr Alban | Scotland |
| Yr As Fach | Nash |
| Yr As Fawr | Monknash |
| Yr Eglwys Lwyd | Ludchurch |
| Yr Hendy | Hendy |
| Yr Orsedd | Rossett |
| Yr Wyddfa | Snowdon |
| Yr Wyddgrug | Mold |
| Yr Ystog | Churchstoke |
| Ystagbwll | Stackpole |
| Ystrad Fflur | Strata Florida |
| Ystum Taf | Llandaff North |
| Ystumllwynarth | Oystermouth |
Place Names in English and Welsh
| English | Welsh |
| Abbey Cwmhir | Abatycwmhir |
| Aberavon | Aberafan |
| Aberbargoed | Aberbargod |
| Abercastle | Abercastell |
| Abercynon | Abercynnon |
| Aberdare | Aberdar |
| Aberdovey | Aberdyfi |
| Aberffraw | Aberffro |
| Abergavenny | Y Fenni |
| Abergele Roads | Angorfa Abergele |
| Aberglasney | Aberglasne |
| Aberkenfig | Abercynffig |
| Abermule | Abermiwl |
| Aberthaw | Aberddawan |
| Abertillery | Abertyleri |
| Afan Vale | Abergwynfi |
| Allt-yr-yn | Allt-yr-ynn |
| Ambleston | Treamlod |
| Ammanford | Rhydaman |
| Amroth | Llanrhath |
| Angle | Nangle |
| Asheston | Trefaser |
| Bangor-on-Dee | Bangor Is-coed |
| Bardsey | Ynys Enlli |
| Bargoed | Bargod |
| Barmouth | Abermawr |
| Barry | Y Barri |
| Bath | Caerfaddon |
| Battle | Y Batel |
| Bayvil | Y Beifil |
| Beaumaris | Biwmares |
| Bedwellty | Bedwellte |
| Begelly | Begeli |
| Beguildy | Begeildy |
| Belfast | Belffast |
| Berriew | Aberriw |
| Bersham | Bers |
| Beulah | Biwlah |
| Birkenhead | Penbedw |
| Bishpool | Llangadwaldr |
| Blackmill | Melin Ifan Ddu |
| Blackwood | Coed-duon |
| Bletherston | Trefelen |
| Bolton | Trefanedd |
| Bonvilston | Tresimwn |
| Boughrood | Bochrwyd |
| Boulston | Bulston |
| Boverton | Trebefered |
| Brawdy | Breudeth |
| Brecon | Aberhonddu |
| Bridgend | Pen-y-bont |
| Brimaston | Treowman |
| Bristol | Bryste |
| Brittany | Llydaw |
| Broad Haven | Aberllydan |
| Broad Oak | Derwen-fawr |
| Brooks | Faenor Ucha |
| Buckley | Bwcle |
| Builth Wells | Llanfair-ym-Muallt |
| Burry Port | Porth Tywyn |
| Buttington | Tal-y-bont |
| Bwlch y Plain | Bwlch-y-ffridd |
| Cadoxton | Tregatwg |
| Cadoxton (Neath) | Llangatwg Nedd |
| Caerleon | Caerllion |
| Caerphilly | Caerffili |
| Caldey Island | Ynys Byr |
| Cambridge | Caergrawnt |
| Camrose | Camros |
| Canterbury | Caergaint |
| Canton | Treganna or Cantwn |
| Capel Colman | Llan-Golman |
| Cardiff | Caerdydd |
| Cardiff Airport | Maes Awyr Caerdydd |
| Cardigan | Aberteifi |
| Carew | Caeriw |
| Carlisle | Caerliwelydd |
| Carmarthen | Caerfyrddin |
| Cascob | Casgob |
| Castle Caereinion | Castell Caereinion |
| Castle Morris | Casmorys |
| Castleblythe | Cas-fuwch |
| Castlemartin | Castellmartin |
| Castlemorris | Castell Morris |
| Cefn Mably | Cefn Mabli |
| Cemmaes Road | Glantwymyn |
| Chancery | Rhydgaled |
| Cheltenham | Treffynnon |
| Chepstow | Cas-gwent |
| Chester | Caerlleon |
| Chirk | Y Waun |
| Church Village | Pentre Eglwys |
| Churchill Park | Parc Churchill |
| Churchstoke | Yr Ystog |
| Cilgerran | Cil-Garon |
| Clatter | Cletwr |
| Clydach Vale | Cwm Clydach |
| Clynderwen | Clunderwen |
| Clyro | Cleirwy |
| Clywedog Lake | Llyn Clywedog |
| Cockett | Y Cocyd |
| Coedely | Coedelai |
| Coity | Coety |
| Colwinston | Tregolwyn |
| Colwyn Bay | Bae Colwyn |
| Connahs Quay | Cei Connah |
| Cork | Corc |
| Cornwall | Cernyw |
| Cowbridge | Y Bont-faen |
| Coychurch | Llangrall |
| Cray | Crai |
| Cresselly | Creseli |
| Crewgreen | Cryw Green |
| Crickadarn | Crucadarn |
| Crickhowell | Crughywel |
| Crinow | Crynwedd |
| Crossgates | Y Groes |
| Crosswell | Ffynnon-groes |
| Crumlin | Crymlyn |
| Crundale | Cryndal |
| Crunwear | Cronwern |
| Crynant | Y Creunant |
| Cwm Ciddy | Cwm Ciddi |
| Cwmavon | Cwmafan |
| Cwmwdig Water | Dwr Cwmwdig |
| Cyfronydd | Cyfronnydd |
| Denbigh | Dinbych |
| Devils Bridge | Pontarfynach |
| Devon | Dyfnaint |
| Dinorwic | Y Felinheli |
| Dublin | Dulyn |
| Duthlas | Dutlas |
| East Williamston | Williamston Elinor |
| Ebbw Vale | Glynebwy |
| Edwinsford | Rhydodyn |
| Eglwyswrw | Eglwys-Eirw |
| Elan Village | Pentref Elan |
| Elliotstown | Trefeliot |
| Elvel | Llansantffraid-yn-Elfael |
| Ely | Trelai |
| Energlyn | Enaur Glyn |
| England | Lloegr |
| Erbistock | Erbistog |
| Erwood | Erwyd |
| Evenjobb | Einsiob |
| Ewenny | Ewenni |
| Eweston | Trewen |
| Exeter | Caerwysg |
| Fairwater | Tyllgoed |
| Ferndale | Glynrhedynog |
| Ferryside | Glanyfferi |
| Fishguard | Abergwaun |
| Five Roads | Pump-hewl |
| Flemingston | Trefflemin |
| Flint | Y Fflint |
| Fonmon | Ffwl-y-mwn |
| Fontygary | Ffont-y-gari |
| Ford | Y Fford |
| Forden | Ffordun |
| Four Roads | Pedair-hewl |
| Furnace | Ffwrnais |
| Gileston | Silstwn |
| Gladestry | Llanfair Llythyfnwg |
| Glangrwyney | Llangrwyney |
| Glasbury | Y Clas-ar-Wy |
| Glastonbury | Ynys Gwydrin |
| Gloucester | Caerloyw |
| Glyn Neath | Glyn-nedd |
| Golden Grove | Gelli Aur |
| Goodwick | Wdig |
| Gower | Penrhyn |
| Gowerton | Tre-gwyr |
| Graig | Y Graig |
| Graig Cefn Parc | Craigcefnparc |
| Graig-y-Rhacca | Graig-y-rhaca |
| Granston | Treopert |
| Grassholm | Ynys Gwales |
| Gresford | Gresffordd |
| Guernsey | Ynys y Garn |
| Guilsfield | Cegidfa |
| Haverfordwest | Hwlffordd |
| Hawarden | Penarlag |
| Haycastle Cross | Croes Cas-lai |
| Hay-on-Wye | Y Gelli |
| Hayscastle | Cas-lai |
| Hendy | Yr Hendy |
| Henrys Moat | Castellhenri |
| Holyhead | Caergybi |
| Holywell | Treffynnon |
| Howey | Hawy |
| Ilston | Llanilltud |
| Johnstown | Tre loan |
| Jordanston | Trefwrdan |
| Keeston | Tregetin |
| Kenfig | Cynffig |
| Kenfig Hill | Mynyddcynffig |
| Kerry | Ceri |
| Kilgetty | Cilgeti |
| Kilvey | Cilfai |
| Kingswood | Coed-y-Brennin |
| Knaveston | Treganeithw |
| Knelston | Llan-y-tair-mair |
| Knighton | Tref-y-clawdd |
| Knucklas | Cnwclas |
| Laleston | Trelales |
| Lampeter | Llanbedr Pont Steffan |
| Lampeter Velfrey | Llanbedr Felffre |
| Lamphey | Llandyfai |
| Landore | Glandwr |
| Lansbury Park | Parc Lansbury |
| Laugharne | Lacharn |
| Lawrenny | Lawrenni |
| Lawrenny Quay | Cei Lawrenni |
| Leckwith | Lecwydd |
| Leeds | Lloed |
| Leicester | Caerlyr |
| Leighton | Tre r Llai |
| Letterston | Treletert |
| Lisvane | Llys-faen |
| Little England | Sir Benfro Saesneg |
| Little Haven | Aber-bach |
| Little Newcastle | Casnewydd-bach |
| Liverpool | Lerpwl |
| Llaithddu | Llaethdy |
| Llampha | Llanffa |
| Llanafan-fawr | Llananfan-Fawr |
| Llanbethery | Llanbydderi |
| Llanbleddian | Llanfleiddan |
| Llancadle | Llancatal |
| Llandaff | Llandaf |
| Llandaff North | Ystum Taf |
| Llanddewi Velfrey | Llanddewi Felffre |
| Llandegley | Llandegle |
| Llandeloy | Llan-lwy |
| Llandissilio | Llandysillio yn-Nyfed |
| Llandough | Llandochau |
| Llandovery | Llanymddyfri |
| Llandow | Llandw |
| Llandre | Llandre |
| Llandrindod Wells | Llandrindod |
| Llanelieu | Llanelwy |
| Llanfrynfach | Llanfrynach |
| Llanfyrnach | Llan-Vrynach |
| Llangammarch Wells | Llangammarch |
| Llangattock | Llangatwg |
| Llangennith | Llangynydd |
| Llangunllo | Llangynllo |
| Llanharry | Llanhari |
| Llanhowel | Llanhywel |
| Llanmaes | Llan-faes |
| Llanmihangel | Llanfihangel y Bont-faen |
| Llanreithan | Llan-Rhidian |
| Llansannor | Llansanwyr |
| Llansantffraed | Llansantffraid |
| Llansantffraed-Cwmdeuddwr | Llansantffraid-Cwmdeuddwr |
| Llanstephan | Llansteffan |
| Llantood | Llantwyd |
| Llantwit Fadre | Llanilltud Faerdre |
| Llantwit Major | Llanilltud Fawr |
| Llanwnda | Llan-Wyndav |
| Llanwonno | Llanwynno |
| Llanwrtyd Wells | Llanwrtyd |
| Llanychaer | Llanerch-aur |
| Llanychlwydog | Llanerch-lwydog |
| Llanyre | Llanllyr |
| Llawhaden | Llanhuadain |
| Llwynpia | Llwyn-y-pia |
| Llysworney | Llyswyrny |
| Lochvane | Loch-fan |
| London | Llundain |
| Loughor | Casllwchwr |
| Lower Chapel | Capel Isaf |
| Lower Solva | Solfach Isaf |
| Ludchurch | Yr Eglwys Lwyd |
| Lundy | Ynys Wair |
| Maesycwmmer | Maes-y-cwmwr |
| Manchester | Manceinon |
| Manorbier | Maenorbyr |
| Manorowen | Manerawen |
| Marcross | Marcroes |
| Mathry | Merthyr |
| Melin-y-Ddol | Meli-y-Ddol |
| Menai Bridge | Porthaethwy |
| Merlins Bridge | Pontfadlen |
| Merthyr Tydfil | Merthyr Tudful |
| Michaelchurch on Arrow | Llanfihangel-dyffryn Arwy |
| Michaelston-le-Pit | Llanfihangel y Pwll |
| Michaelston-super-Avon | Llanfihangel-ynys-Afan |
| Michaelston-super-Ely | Llanfihangel-ar-Elai |
| Middle Mill | Felinganol |
| Milford Haven | Aberdaugleddau |
| Milton | Bryncwtin |
| Minera | Mwynglawdd |
| Minwear | Mynwar |
| Miskin | Meisgyn |
| Mold | Yr Wyddgrug |
| Monington | Eglwys Wythwr |
| Monknash | Yr As Fawr |
| Montgomery | Trefaldwyn |
| Mornington Meadows | Dolydd Trefore |
| Morriston | Treforys |
| Mountain Ash | Aberpennar |
| Mounton | Monkton |
| Moylegrove | Trewyddel |
| Mumbles | Mwmbwls |
| Mynachlog-ddu | Monach-log Du |
| Mynwear | Mynwar |
| Mynyddygarreg | Mynydd-y-garreg |
| Narberth | Arberth |
| Narberth Bridge | Pont Arberth |
| Nash | Yr As Fach |
| Neath | Castell -nedd |
| Neath Abbey | Mynachlog Nedd |
| Nevern | Nanhyfer |
| New Hedges | Llan-fair |
| New Mills | Felin Newydd |
| New Moat | Y Mot |
| New Quay | Ceinewydd |
| New Radnor | Maesyfed |
| New Tredegar | Tredegar Newydd |
| Newborough | Niwbwrch |
| Newbridge on Wye | Pontnewydd ar Wy |
| Newcastle | Y Castellnewydd |
| Newcastle Emlyn | Castellnewydd Emlyn |
| Newchapel | Capel Newydd |
| Newchurch | Llannewydd |
| Newgale | Niwgwl |
| Newport | Trefdraeth |
| Newport (Gwent) | Casnewydd |
| Newport (Pembrokeshire) | Trefdraeth |
| Newton North | Llys-Prawst |
| Newton Nottage | Drenewydd yn Notais |
| Newtown | Y Drenewydd |
| Nriton Ferry | Llansawel |
| Oakford | Derwen-gam |
| Ochrwyth | Ochr Chwith |
| Ogmore-by-Sea | Aberogwr |
| Orkney | Ynysoedd Erch |
| Oxford | Rhydychen |
| Oystermouth | Ystumllwynarth |
| Painscastle | Castell Paen |
| Pantside | Cefn y Pant |
| Pelcomb | Pelcam |
| Pembroke | Penfro |
| Pembroke Dock | Doc Penfro |
| Pembrokeshire | Sir Benfro |
| Pen Berry | Penbiri |
| Penally | Penalun |
| Penblewin | Penblewyn |
| Penclawdd | Llanyrnewydd |
| Pencoedcae | Pen-y-Coedcae |
| Pendine | Pentywyn |
| Pendoylan | Pendeulwyn |
| Penley | Llanerch Panna |
| Penmark | Penmarc |
| Pennant Melangell | Pennat Melangell |
| Pen-Prisk | Pen-prysg |
| Pentrebeirdd | Pentrer Beirdd |
| Pentrefelin | Pentrer-felin |
| Peterston-super-Ely | Llanbedr-y-Fro |
| Phillipstown | Trephylip |
| Picton Ferry | Pictwn |
| Pointz Castle | Cas-bwnsh |
| Pontfaen | Bont-Faen |
| Pontllanfraith | Pontlan-fraith |
| Pontneathvaughan | Pontneddfechan |
| Pontshonnorton | Pont Sion Norton |
| Pontymister | Pont-y-meistr |
| Pontypool | Pont-y-pwl |
| Pool Quay | Ceir Trallwng |
| Porthkerry | Porthceri |
| Poyston Cross | Croes Poyston |
| Presteigne | Llanandras |
| Puncheston | Cas-mael |
| Quakers Yard | Mynwent y Crynwyr |
| Radyr | Radur |
| Ramsay Island | Ynys Dewi |
| Red Roses | Rhos-goch |
| Redberth | Rydberth |
| Resolven | Resolfen |
| Reynoldston | Reynalton |
| Rhayader | Rhaeadr Gwy |
| Rhoose | Y Rhws |
| Rhoscrowther | Rhos-y-crythor |
| Rhymney | Rhymni |
| Rickeston | Trericert |
| Risca | Rhisga |
| Robertstown | Tresalem |
| Robeston Wathen | Robeston East |
| Roch | Y Garn |
| Rome | Rhufain |
| Rosebush | Rhosgoch |
| Rosemarket | Rhosfarced |
| Rossett | Yr Orsedd |
| Rudry | Rhydri |
| Ruperra | Rhiw r Perrau |
| Ruthin | Rhuthun |
| Saint Andrews Major | Saint Andras |
| Saint Asaph | Llanelwey |
| Saint Athan | Sain Tathan |
| Saint Brides | Sain Ffred |
| Saint Brides Major | Saint-y-brid |
| Saint Brides Minor | Llansanffraid-ar-Ogwr |
| Saint Brides-super-Ely | Llansanffraid-ar-Elai |
| Saint Davids | Tyddewi |
| Saint Davids Head | Penmaendewi |
| Saint Dogmaels | Llandudoch |
| Saint Dogwells | Llantydewi |
| Saint Donats | Sain Dunwyd |
| Saint Elvis | Llaneilfyw |
| Saint Fagans | Sain Ffagan |
| Saint George-super-Ely | Sain Siorys |
| Saint Govans | Sant Gofan |
| Saint Govans Head | Pen Gofan |
| Saint Hilary | Saint Hilari |
| Saint Ishmaels | Llanisan-yn-Rhos |
| Saint Issells | Saint Ishel |
| Saint Lythans | Llwyneliddon |
| Saint Mary Church | Llanfair |
| Saint Mary Hill | Eglwys Fair-y-Mynydd |
| Saint Mellons | Llaneirwg |
| Saint Nicholas | Sain Nicolas |
| Saint Petrox | Sain Pedrog |
| Saundersfoot | Llanussyllt |
| Scotland | Yr Alban |
| Seaside | Glan-y-mor |
| Sennybridge | Pontsenni |
| Sigingstone | Tresign |
| Sketty | Sgeti |
| Skewen | Sgiwen |
| Skokholm Island | Ynys Sgogwm |
| Skomer Island | Ynys Sgomer |
| Slebech | Slebets |
| Snowdon | Yr Wyddfa |
| Solva | Solfach |
| Somerset | Gwlad yr Haf |
| Soughton | Sychdyn |
| Spittal | Spital |
| Splott | Y Sblot |
| Square and Compass | Y Sgwar |
| St Clears | Sancler |
| St Davids | Tyddewi |
| St Dogmaels | Llandudoch |
| St Ishmaels | Llanisan-yn-Rhos |
| St Nicholas | Tremarchog |
| Stackpole | Ystagbwll |
| Stackpole Elidor | Stackpole Elidir |
| Staylittle | Penffordd-Las |
| Stonehenge | Cor y Cewri |
| Stop and Call | Stopio a Galw |
| Strata Florida | Ystrad Fflur |
| Strumble | Y Strymbl |
| Strumble Head | Pen Caer |
| Sully | Sili |
| Swansea | Abertawe |
| Synod Inn | Post-mawr |
| Talbenny | Telbenny |
| Tallarn Green | Talwrn Green |
| Talley | Talyllychau |
| Talybont-on-usk | Talybont-ar-Wysg |
| Talygarn | Tal-y-garn |
| Templeton | Tredemel |
| Tenby | Dinbych-y-pysgod |
| Thornhill | Draenen Pen-y-graig |
| Three Cocks | Aberllynfi |
| Tintern | Tyndyrn |
| Trebanos | Trebannws |
| Trecastle | Trecastell |
| Trefecca | Trefeca |
| Treffgarne | Great Trefgarn |
| Tregolwyn | Colwinstone |
| Trelydan | Plas Trelydan |
| Treorchy | Treorci |
| Trerhyngyll | Trerhingyll |
| Trethomas | Tretomos |
| Tretower | Tretwr |
| Trevaughan | Trefechan |
| Trevine | Trefin |
| Tycrwyn | Tycrwn |
| Tythegston | Llandudwg |
| Ulster | Wlster |
| Upper Borth | Y Borth Uchaf |
| Upper Chapel | Capel Uchaf |
| Upper Solva | Solfach Uchaf |
| Usk | Brynbuga |
| Uzmaston | Ismiston |
| Van | Y Fan |
| Vaynor | Faenor |
| Velindre | Felindre |
| Venice | Fenis |
| Walterston | Trewallter |
| Walton East | Waltwn Dwyrain |
| Walton West | Waltwn Gorllewin |
| Walwyns Castle | Castell-Gwalchmai |
| Welsh Saint Donats | Llanddunwyd |
| Welshpool | Y Trallwng |
| Wenvoe | Gwenfo |
| Whitchurch | Tre-groes |
| Whitesands | Y Traeth Mawr |
| Whitland | Hendy-gwyn ar Daf |
| Whitton | Llanddewi yn Hwytyn |
| Wick | Y Wig |
| Williamstown | Trewiliam |
| Winchester | Caerwynt |
| Wiston | Cas-wis |
| Withybush | Llwynhelyg |
| Wolfs Castle | Cas-blaidd |
| Worcester | Caerwrangon |
| Wrexham | Wrecsam |
| York | Efrog |
NOTES
- It is very common for the first letter in a Welsh word to change according to gramatical rules. e.g. "Pembroke" is normally translated as "Penfro" but "Pembrokeshire" is usually "Sir Benfro".
- The Welsh language uses some accented characters. Unfortunately, a browser compatibility issue prevents me from displaying accents and apostrophies