
South West Wales is one of theregions of Wales comprising the unitary authorities ofSwansea,Neath Port Talbot,Carmarthenshire andPembrokeshire.
This definition is used by a number of government agencies and private organisations including:
A different definition is used in the EUNomenclature of Territorial Units for Statistics, which refers toSouth West Wales as a subdivision ofWest Wales and the Valleys comprising Carmarthenshire, Ceredigion and Pembrokeshire.[9]
The area that is now considered to be South West Wales was established asDeheubarth byHywel Dda in around the year 920. Although not a kingdomper se, it was ruled dynastically and fought over for centuries, until theconquest of Wales by Edward I, completed in 1283, when it was divided into the historic counties that exist today.
South West Wales is made up of the four principal areas ofCarmarthenshire,Neath Port Talbot,Pembrokeshire andSwansea.
TheSwansea Bay City Region is a partnership between local authorities, businesses and other organisations.
In April 2021, aSouth West Wales Corporate Joint Committee was formed to allow the four local councils in the region to collaborate in areas relating to economic well-being, strategic planning and the development of regional transport policies.