Dwyfor Meirionnydd (UK Parliament constituency)


Dwyfor Meirionnydd is a constituency of the House of Commons of the Parliament of the United Kingdom, represented since 2015 by Liz Saville Roberts of Plaid Cymru.
Like its predecessors, it is a Plaid Cymru stronghold, with their candidate in 2024 achieving a majority of 39.3%.
Until 2024, the seat shared the same boundaries with the Dwyfor Meirionnydd Senedd constituency, the latter of which still uses the borders established for the 2007 Welsh Assembly election.

History

Dwyfor Meirionnydd was created by the Welsh Boundary Commission for the 2010 general election, and replaced the old north Wales seat of Meirionnydd Nant Conwy.
At the 2023 Periodic Review of Westminster constituencies and under the June 2023 final recommendations of the Boundary Commission for Wales, the constituency retained its name and gained wards in boundary changes first used for the 2024 United Kingdom general election.

Boundaries

The constituency was created by merging most of Meirionnydd Nant Conwy with the southern part of Caernarfon; the northern area became part of a new Arfon constituency.2010–2024: The County of Gwynedd wards of: Aberdaron, Aberdyfi, Abererch, Abermaw, Abersoch, Bala, Botwnnog, Bowydd and Rhiw, Brithdir and Llanfachreth/Ganllwyd/Llanelltyd, Bryn-crug/Llanfihangel, Clynnog, Corris/Mawddwy, Criccieth, Diffwys and Maenofferen, Dolbenmaen, Dolgellau North, Dolgellau South, Dyffryn Ardudwy, Efail-newydd/Buan, Harlech, Llanaelhaearn, Llanbedr, Llanbedrog, Llandderfel, Llanengan, Llangelynin, Llanuwchllyn, Llanystumdwy, Morfa Nefyn, Nefyn, Penrhyndeudraeth, Porthmadog East, Porthmadog West, Porthmadog-Tremadog, Pwllheli North, Pwllheli South, Teigl, Trawsfynydd, Tudweiliog and Tywyn.
2024–present: Under the 2023 review, drawn up in accordance with the ward structure in existence on 1 December 2020, the constituency was defined as comprising the wards above, plus the Gwynedd wards of Bethel, Bontnewydd, CadnantCwm-y-Glo, Deiniolen, Groeslon, Llanberis, Llanllyfni, Llanrug, Llanwnda, Menai, Peblig, Penisarwaun, Pentir, Penygroes, Seiont, Talysarn, Waunfawr, and Y Felinheli; and the County of Denbighshire wards of Corwen and Llandrillo.
Following local government boundary reviews which came into effect in May 2022, the constituency now comprises the following from the 2024 general election:
The seat is bordered to the north by Bangor Aberconwy, to the south by Montgomeryshire and Glyndŵr, and to the east by Clwyd East.