; ) is a six-member constituency of the Senedd (Welsh Parliament; ) used in the 2026 Senedd election. It is located in North Wales and includes Anglesey, northern Gwynedd, most of Conwy County Borough, and part of western Denbighshire.
It was proposed following the 2026 review of Senedd constituencies, and is a pairing of the two UK Parliament constituencies of Bangor Aberconwy and Ynys Môn. It has a Welsh-only name.
Boundaries The constituency includes the entire county of Anglesey, the area around Bangor and Bethesda in Gwynedd, Conwy County Borough with the exception of the coastline around Colwyn Bay and Abergele, and the western part of central Denbighshire.
A Senedd constituency comprising the boundaries of the UK Parliament constituencies of Bangor Aberconwy and Ynys Môn was proposed by the Democracy and Boundary Commission Cymru for the 2026 election to the Senedd (Welsh Parliament; ). It was initially proposed using the name Bangor Aberconwy Môn in September 2024, but was shortened to in December proposals, with most constituencies using Welsh-only names. The Welsh-only name and boundaries were confirmed in the commission's final recommendations in March 2025. When announcing their candidates, Reform UK used "Bangor Aberconwy, Ynys Môn" instead, using the names for the pair of UK Parliament constituencies that form it.
The constituency was established in 2026, following the passing of the Senedd Cymru (Members and Elections) Act 2024. The act legislates electoral reform of the Senedd to create 16 larger "super constituencies", pairing the 32 UK Parliament constituencies in Wales, and using a new fully proportional voting system, with each constituency electing six Members of the Senedd (MSs) rather than one previously. Members of the Senedd Term Election Distribution MS MS MS MS MS MS 7th 2026 3 1 2 Rhun ap Iorwerth(PC) Helen Jenner(Ref) Mair Rowlands(PC) Elfed Williams(PC) John Clark(Ref) Janet Finch-Saunders(Con)
Elections Elections in the 2020s
2021 notional result Party Vote % Seats Plaid Cymru 28,409 44.3 3 Conservative 17,924 27.9 2 Labour 14,518 22.6 1 Liberal Democrats 1,709 2.7 0 Reform UK 1,198 1.9 0 No More Lockdowns 223 0.3 0 UKIP 74 0.1 0 Abolish 71 0.1 0 Gwlad 39 0.1 0 Independent 34 0.1 0
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