This is a list of places in Wales which have standing links to local communities in other countries known as "town twinning" (usually in Europe) or "sister cities" (usually in the rest of the world).

A Abergavenny

Beaupréau-en-Mauges, France Östringen, Germany

Abergele Roissy-en-Brie, France

Abertillery Royat, France

Aberystwyth

Arklow, Ireland Esquel, Argentina Kronberg im Taunus, Germany Saint-Brieuc, France

B Bala Bala (Muskoka Lakes), Canada

Bagillt Laxey, Isle of Man

Bangor Soest, Germany

Blackwood Protivín, Czech Republic

Blaenavon Coutras, France

Blaenau Gwent Oberhausen-Rheinhausen, Germany

Brecknockshire Blaubeuren, Germany

Brecon

Dhampus, Nepal Gouesnou, France Saline, United States

Bridgend

Langenau, Germany Villenave-d'Ornon, France

Briton Ferry Ouagadougou, Burkina Faso

Broughton and Bretton Auzeville-Tolosane, France

Brynmawr Camors, France

C Caernarfon

Landerneau, France Trelew, Argentina

Caerphilly

Ludwigsburg, Germany Písek, Czech Republic

Caldicot

Morières-lès-Avignon, France Waghäusel, Germany

Cardiff

Luhansk, Ukraine Nantes, France Stuttgart, Germany Xiamen, China

Cardigan

Brioude, France Trevelin, Argentina

Carmarthen

As Pontes de García Rodríguez, Spain Lesneven, France

Colwyn Bay Roissy-en-Brie, France

Cowbridge Clisson, France

Crickhowell Scaër, France

Crymych

Hlotse, Lesotho Plomelin, France

Cwmaman Pouldergat, France

Cwmbran Bruchsal, Germany

D Denbigh Biebertal, Germany

Dolgellau Guérande, France

F Fishguard and Goodwick Loctudy, France

Flintshire Menden, Germany

G Glynneath Pont-Évêque, France

Gorseinon Ploërmel, France

Govilon Missillac, France

Gowerton La Gacilly, France

H Haverfordwest Oberkirch, Germany

Hay-on-Wye

Redu (Libin), Belgium Timbuktu, Mali

Holyhead Greystones, Ireland

Holywell Saint-Grégoire, France

I Isle of Anglesey Dún Laoghaire, Ireland

K Kidwelly Saint-Jacut-de-la-Mer, France

L Llanberis Morbegno, Italy

Llanbradach Ploubezre, France

Llandeilo Le Conquet, France

Llandovery Pluguffan, France

Llandrindod Wells

Bad Rappenau, Germany Contrexéville, France

Llandudno

Champéry, Switzerland Wormhout, France

Llandybie Plonéour-Lanvern, France

Llandysul Plogonnec, France

Llanelli Agen, France

Llanfairfechan Pleumeleuc, France

Llangedwyn Omerville, France

Llanidloes Derval, France

Llantrisant Crécy-en-Ponthieu, France

Llantwit Major Le Pouliguen, France

Llanwrtyd Wells

Český Krumlov, Czech Republic Mériel, France

Llwchwr Ploërmel, France

M Machen Sautron, France

Machynlleth Belleville, United States

Milford Haven

Romilly-sur-Seine, France Uman, Ukraine

Monmouth

Carbonne, France Waldbronn, Germany

Monmouthshire Karlsruhe (district), Germany

Mumbles

Havre de Grace, United States Hennebont, France

N Narberth Ludlow, England, United Kingdom

Nefyn Puerto Madryn, Argentina

Newcastle Emlyn Plonévez-Porzay, France

Newport

Heidenheim an der Brenz, Germany Kutaisi, Georgia

Newport, Pembrokeshire

Annapolis, United States Plouguin, France

Newtown Les Herbiers, France

Neyland Sanguinet, France

Norton Ligné, France

P Pembroke

Bergen, Germany Pembroke, Malta

Pembroke Dock

Bergen, Germany Pembroke, Malta

Penarth Saint-Pol-de-Léon, France

Pencoed

Plouzané, France Waldsassen, Germany

Pontardawe Locminé, France

Pontarddulais Cobh, Ireland

Pontypool

Bretten, Germany Condeixa-a-Nova, Portugal Longjumeau, France

Porthcawl

Ploudalmézeau, France Saint-Sébastien-sur-Loire, France

Porthmadog Wicklow, Ireland

Presteigne Ligné, France

R Radyr and Morganstown Saint-Philbert-de-Grand-Lieu, France

Raglan Parcé-sur-Sarthe, France

Rhondda Cynon Taf

Montélimar, France Nürtingen, Germany Ravensburg, Germany Wolfenbüttel (district), Germany

Ruthin Briec, France

S St Asaph Bégard, France

St Clears Peillac, France

St Davids

Matsieng, Lesotho Naas, Ireland Orléat, France

St Dogmaels Trédarzec, France

Swansea

Cork, Ireland Ferrara, Italy Mannheim, Germany Pau, France Sinop, Turkey Wuhan, China

T Torfaen Karlsruhe (district), Germany

Tredegar Orvault, France

Tregaron Plouvien, France

U Usk Graben-Neudorf, Germany

V Vale of Glamorgan

Fécamp, France Mouscron, Belgium Rheinfelden, Germany

W Whitland Pipriac, France

Wrexham

Märkischer (district), Germany Racibórz County, Poland

Y Ystradgynlais Clarks Summit, United States

References