This is a list of places in the United Kingdom having standing links to local communities in other countries. In most cases, the association, especially when formalised by local government, is known as "town twinning" (though other terms, such as "partner towns" or "sister cities" are sometimes used instead), and while most of the places included are towns, the list also includes villages, cities, districts, counties, etc. with similar links.

England

Northern Ireland

Antrim and Newtownabbey Ards and North Down Armagh Ballymena Ballymoney Banbridge Bangor Belfast Carrickfergus Coleraine Cookstown Craigavon Downpatrick Dromore Enniskillen terminated its twinning. Larne Limavady Moyle Newcastle Newry, Mourne and Down Newtownards Omagh terminated its twinning. Rathfriland

Scotland

Wales