Coordinates: 52°50′56″N 3°58′59″W / 52.849°N 3.983°W
Dwyfor Meirionnydd is a constituency of the House of Commons of the Parliament of the United Kingdom (at Westminster). The seat was created by the Welsh Boundary Commission for the 2010 general election, and replaced the old north Wales seat of Meirionnydd Nant Conwy. Dwyfor Meirionnydd is bordered to the north by Arfon and Aberconwy. The same boundaries were used for the Dwyfor Meirionnydd Welsh Assembly constituency in the 2007 Welsh Assembly election.
This is the safest of Plaid Cymru's three seats, with the nearest challenger in 2010 having obtained just over half the number of votes received by Elfyn Llwyd.
The electoral wards used to create the new Dwyfor Meirionnydd seat are as follows. They are entirely within the preserved county of Gwynedd.
- 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.
Members of Parliament
Elections in the 2010s