Caerfyrddin (UK Parliament constituency)

Caerfyrddin (Carmarthen)
County constituency
for the House of Commons
Interactive map of boundaries from 2024
Boundary of Caerfyrddin in Wales
Preserved countyDyfed
Electorate72,683 (March 2020)
Major settlementsCarmarthen, Ammanford, Llandeilo
Current constituency
Created2024
Member of ParliamentAnn Davies (Plaid Cymru)
SeatsOne
Created fromCarmarthen East & Dinefwr and Carmarthen West & South Pembrokeshire
19181997
SeatsOne
Type of constituencyCounty constituency
Created fromWest Carmarthenshire, East Carmarthenshire and Carmarthen Boroughs
Replaced byCarmarthen East & Dinefwr and Carmarthen West & South Pembrokeshire

Caerfyrddin (Welsh: [kairˈvərðɪn]), also known as Carmarthen, is a constituency of the House of Commons in the UK Parliament, first contested at the 2024 general election, following the 2023 review of Westminster constituencies. It is currently represented by Ann Davies of Plaid Cymru.

In the Parliamentary Constituencies Order 2023, the name is given as Caerfyrddin (Carmarthen). Of the twenty-five Welsh constituencies with names in both English and Welsh, Caerfyrddin is the only one where the Welsh name comes first followed by the English name in brackets (in each of the other cases, the opposite is true). Caerfyrddin is the form used by the UK Parliament.

A similar constituency existed between 1918 and 1997 under the name Carmarthen.