The modern Welsh language contains names for many towns and other geographical features in Great Britain and elsewhere. Names for places outside of Welsh-speaking regions are exonyms, not including spelling or pronunciation adaptions and translations of non-proper nouns.
Names in italics are dated or obsolete.
Argentina [ ]
Argentina Ariannin
English name
Welsh name
Spanish name
Notes
Arroyo Pescado
Nant y Pysgod
Arroyo Pescado
Cajón de Ginebra
Bocs Gin
Cajón de Ginebra
Cerro Cóndor
Craig yr Eryr
Cerro Cóndor
Cerro Trono de las Nubes
Gorsedd y Cwmwl
Cerro Trono de las Nubes
Chico River
Afon Fach
Rio Chico
Chubut River
Afon Camwy
Rio Chubut
Colonia 16 de Octubre
Cwm Hyfryd, Bro Hydref
Colonia 16 de Octubre
Desvío km 22
Tŵr Joseph
Desvío km 22
Dolavon
Dol Afon
Dolavon
Estación Laguna Grande
Llyn Mawr
Estación Laguna Grande
Florentino Ameghino Dam
Yr Argae
Dique Florentino Ameghino
Fuerte Aventura
Caer Antur
Fuerte Aventura
Laguna de Aaron
Llyn Aaron
Laguna de Aaron
Laguna de Agnia
Llyn Ania
Laguna de Agnia
La Angostura
Lle Cul
La Angostura
Las Plumas
Dôl y Plu
Las Plumas
Loma Blanca
Bryn Gwyn
Loma Blanca
Paso de Indios
Rhyd yr Indiaid
Paso de Indios
Pampa de Agnia
Pant y Ffwdan
Pampa de Agnia
Puerto Madryn
Porth Madryn
Puerto Madryn
Rawson
Trerawson
Rawson
Río Corrintos
Aber Gyrants
Río Corrintos
Tecka
Hafn Lâs
Tecka
Trelew
Tre Lew(is)
Trelew
Trevelin
Tre Felin
Trevelin
Valle de los Mártires
Dyffryn y Merthyron
Valle de los Mártires
Valle Frío
Dyffryn Oer
Valle Frío
Valle 16 de octubre
Cwm Hyfryd/Bro Hydref
Valle 16 de octubre
Veintiocho de Julio
Tir Halen
Veintiocho de Julio
Australia [ ]
Australia Awstralia
English name
Welsh name
Endonym
Notes
Blue Mountains
Mynysoedd Glas
Blue Mountains
Kangaroo Island
Ynys Cangarŵ
Kangaroo Island
Belgium [ ]
Belgium Gwlad Belg
English name
Welsh name
Endonym
Notes
Name
Language
Flanders
Fflandrys
Vlaanderen
Dutch
Canada [ ]
Canada Canada
English name
Welsh name
Endonym
Notes
Name
Language
Newfoundland
Tir Newydd[1]
Newfoundland/Terre Neuve
English/French
France [ ]
France Ffrainc
English name
Welsh name
Endonym
Notes
Name
Language
Alps
Alpau, Myndd Mynnau
Alpes
French
Brittany
Llydaw
Breizh
Breton
Bretagne
French
Bertaèyn
Gallo
Burgundy
Bwrgwyn
Bourgogne
French
Gascony
Gwasgwyn
Gascogne
French
Gasconha
Gascon
Gaskoinia
Basque
Nantes
Naoned
Nantes
French
Naoned
Breton
Naunnt, Nantt
Gallo
Normandy
Normandi, Norddmandi
Normandie
French
Normaundie
Norman
Saint-Malo
Sant-Maloù
Saint-Malo
French
Sant-Maloù
Breton
Strasbourg
Strasbwrg
Strasbourg
French
Straßburg
German
Germany [ ]
Germany Almaen
English name
Welsh name
Endonym
Notes
Name
Language
Bavaria
Bafaria
Bayern
Bavarian, German
Cologne
Cwlen
Kölle
Colognian
Köln
German
Greece [ ]
Greece Gwlad Groeg
English name
Welsh name
Endonym
Notes
Aegean Sea
Môr Aegeaidd, Môr Egeaidd
Αιγαίο πέλαγος
Athens
Athen
Athína (Αθήνα)
Cephalonia
Ceffalonia
Kefaloniá (Κεφαλονιά)
Crete
Creta
Kríti (Κρήτη)
Dodecanese
Y Deuddeng Ynys
Dodekánisa (Δωδεκάνησα)
Rhodes
Rhodos
Ródos (Ρόδος)
Thessaloniki
Thessaloníci
Θεσσαλονίκη (Thessaloníki)
Israel/Palestine [ ]
Israel Palestine
English name
Welsh name
Endonym
Notes
Name
Language
Galilee
Galilea
HaGalil (הגליל)
Hebrew
Jerusalem
Jeriwsalem, Caersalem
Yerushalayim (ירושלים) / al-Quds (القُدس)
Hebrew/Arabic
Ireland [ ]
Ireland Iwerddon
English name
Welsh name
Endonym
Notes
Cork
Corc
Corcaigh
Dublin
Dulyn
Baile Átha Cliath
Welsh name derives from the older Irish name ‘Duibhlinn’.
Ulster
Wlster; Wlaidd, Wledd, Wleth
Ulaidh
Italy [ ]
Italy Eidal
English name
Welsh name
Endonym
Notes
Name
Language
Rome
Rhufain
Roma
Italian
Sicily
Sisili
Sicilia
Italian, Sicilian
Venice
Fenis
Venesia
Venetian
Venezia
Italian
Spain [ ]
Spain Sbaen
English name
Welsh name
Endonym
Notes
Name
Language
Balearic Islands
Ynysoedd Balearaidd
Illes Balears, Islas Baleares
Catalan, Spanish
Canary Islands
Yr Ynysoedd Dedwydd, Ynysoedd y Cŵn
Islas Canarias
Spanish
Catalonia
Catalwnia
Catalunya, Cataluña
Catalan, Spanish
Turkey [ ]
Turkey Twrci
English name
Welsh name
Endonym
Notes
Istanbul
Caergystennin
İstanbul
United Kingdom [ ]
United Kingdom Y Deyrnas Unedig
English name
Welsh name
Endonym
Notes
Name
Language
Archenfield
Ergyng
Archenfield
English
Ballingham
Llanbugnal
Ballingham
English
Bath
Caerfaddon
Bath
English
Belfast
Belffast
Belfast
English
Béal Feirste
Irish
Birkenhead
Penbedw
Birkenhead
English
Bishop's Castle
Trefesgob
Bishop's Castle
English
Bridstow
Llansaffraid
Bridstow
English
Bristol
Bryste; Caerodor
Bristol
English
Cambridge
Caergrawnt
Cambridge
English
Canterbury
Caergaint
Canterbury
English
Carlisle
Caerliwelydd
Carlisle
English
Catterick
Catraeth
Catterick
English
Channel Islands
Ynysoedd y Sianal
Îles Normandes
French
Cheltenham
Treffynnon[citation needed ]
Cheltenham
English
Cheshire
Swydd Gaer
Cheshire
English
Chester
Caer(llion Fawr)
Chester
English
Chichester
Caerfuddai[citation needed ]
Chichester
English
Chirbury
Llanffynhonwen
Chirbury
English
Clyde
Clud
Cluaidh
Scottish Gaelic
Clyde
English, Scots
Colchester
Caercolyn
Colchester
English
Cornwall
Cernyw
Kernow
Cornish
Crewe
Cryw, Criw
Crewe
English
Devon
Dyfnaint
Devon
English
Dover
Dofr[2]
Dover
English
Edinburgh
Caeredin; Dinas Eidyn
Dùn Èideann
Scottish Gaelic
Edinburgh
English, Scots
England
Lloegr
England
English
English Channel
Môr Udd
English Channel
English
La Manche
French
Mor Bretannek
Cornish
Exeter
Caerwysg
Exeter
English
Falmouth
Aberfal
Aberfala
Cornish
Firth of Forth
Moryd Gweryd, Aber Gweryd
Linne Foirthe
Scottish Gaelic
Foy
Llantiuoi
Foy
English
Forth river
Afon Gweryd[3]
Abhainn Dubh, Uisge For
Scottish Gaelic
Glastonbury
Ynys Gwydrin, Ynys Wydrin
Glastonbury
English
Gloucester
Caerloyw
Gloucester
English
Gloucestershire
Swydd Gaerloyw
Gloucestershire
English
Guernsey
Ynys y Garn
Guernèsi
Guernésiais
Hebrides
Ynysoedd Heledd
Innse Gall
Scottish Gaelic
Hentland
Henlland
Hentland
English
Hereford
Henffordd
Hereford
English
Herefordshire
Swydd Henffordd
Herefordshire
English
Humber
Hwmbr
Humber
English
Isle of Man
Ynys Manaw
Ellan Vannin
Manx
Isle of Skye
Yr Ynys Hir
Eilean Sgitheanach
Scottish Gaelic
Isle of Wight
Ynys Wyth
Isle of Wight
English
Kenderchurch
Llancrug
Kenderchurch
English
Kent
Caint
Kent
English
Kentchurch
Llancein
Kentchurch
English
Kilpeck
Llandegui, Cil Pedec
Kilpeck
English
Kington
Ceintun
Kington
English
Leicester
Caerlŷr
Leicester
English
Leicestershire
Swydd Gaerlŷr
Leicestershire
English
Leominster
Llanllieni
Leominster
English
Lichfield
Caerlwytgoed
Lichfield
English
Liverpool
Lerpwl, Llynlleifiad
Liverpool
English
Loch Lomond
Llyn Llumonwy
Loch Laomainn
Scottish Gaelic
London
Llundain, Caerludd
London
English
Long Mynd
Cefn Hirfynydd
Long Mynd
English
Ludlow
Llwydlo
Ludlow
English
Lundy
Ynys Wair
Lundy
English
Manchester
Manceinion
Manchester
English
Greater Manchester
Manceinion Fwyaf
Manchester
English
Marstow
Llanmartin
Marstow
English
Mersey
Merswy
Mersey
English
Merseyside
Glannau Merswy
Merseyside
English
Michaelchurch
Llanmihangel
Michaelchurch
English
Much Dewchurch
Llandewi
Much Dewchurch
English
Much Wenlock
Gwenlloc
Much Wenlock
English
Nantwich
Yr Heledd Wen
Nantwich
English
Northwich
Yr Heledd Ddu
Northwich
English
Orkney
Ynysoedd Erch
Arcaibh
Scottish Gaelic
Oswestry
Croesoswallt
Oswestry
English
Oxford
Rhydychen
Oxford
English
Pennines
Penwynion
Pennines
English
Plymouth
Aberplym
Plymouth
English
Ross-on-Wye
Rhosan-ar-Wy
Ross-on-Wye
English
St Weonards
Llansangwenardd
St Weonards
English
Salisbury
Caersallog; Caercaradog , Caergradwg
Salisbury
English
Sark
Sarc
Cerq, Sèr
Scotland
Yr Alban
Alba
Scottish Gaelic
Scotland
English, Scots
Sellack
Llansulac
Sellack
English
Somerset
Gwlad-yr-haf
Somerset
English
Shrewsbury
Amwythig
Shrewsbury
English
Shropshire
Swydd Amwythig
Shropshire
English
The Stiperstones
Carneddau Teon
The Stiperstones
English
Stonehenge
Côr y Cewri
Stonehenge
English
Strathclyde
Ystrad Clud
Srath Chluaidh
Scottish Gaelic
Thames
Tafwys
Thames
English
Trent
Trannon
Trent
English
Ulster
Wlster; Wlaidd, Wledd, Wleth
Ulaidh
Irish
Welsh Bicknor
Llangystennin Garth Brenni
Welsh Bicknor
English
West Midlands
Gorllewin Canolbarth Lloegr
West Midlands
English
Westminster
San Steffan
Westminster
English
Whitchurch
Yr Eglwys Wen
Whitchurch
English
Winchester
Caerwynt, Caerguint
Winchester
English
Wirral
Cilgwri
Wirral
English
Worcester
Caerwrangon
Worcester
English
The Wrekin
Din Gwrygon
English
Wroxeter
Caerwrygion
Wroxeter
English
York
Efrog
York
English
Yorkshire
Swydd Efrog
Yorkshire
English
United States [ ]
Sources [ ]
Collins-Longman, Yr Atlas Cymraeg Newydd, ISBN 1-86085-377-3 (1999)
Book of Llandaff
See also [ ]
References [ ]