Montgomeryshire and Glyndŵr (UK Parliament constituency)

Montgomeryshire and Glyndŵr (Maldwyn a Glyndŵr) is a constituency of the House of Commons in the UK Parliament, first contested at the 2024 United Kingdom general election, following the 2023 Periodic Review of Westminster constituencies.

The constituency name refers to the former county of Montgomeryshire and the former district of Glyndŵr. Upon its abolition, the predecessor seat, Montgomeryshire, was the only one in Wales never to elect a member of the Labour Party, but at the 2024 election Montgomeryshire and Glyndŵr elected Steve Witherden, making him the first Labour MP ever to represent the former Montgomeryshire area in the House of Commons.

Boundaries
The constituency comprises the following areas:


 * From Powys: Banwy, Berriew, Blaen Hafren, Caersws, Churchstoke, Dolforwyn, Forden, Glantwymyn, Guilsfield, Kerry, Llanbrynmair, Llandinam, Llandrinio, Llandysilio, Llanfair Caereinion, Llanfihangel, Llanfyllin, Llanidloes, Llanwddyn, Llanrhaeadr-ym-Mochnant/ Llansilin, Llansantffraid, Machynlleth, Meifod, Montgomery, Newtown Central, Newtown East, Newtown Llanllwchaiarn North, Newtown Llanllwchaiarn West, Newtown South, Rhiwcynon, Trewern, Welshpool Castle, Welshpool Gungrog, and Welshpool Llanerchyddol;
 * From Wrexham County Borough: Cefn, Dyffryn Ceiriog/Ceiriog Valley, Chirk North, Chirk South, Esclusham, Johnstown, Pant, Penycae, Penycae and Ruabon South, Plas Madoc, Ponciau, and Ruabon.

The official spelling of the constituency, in English and Welsh, uses the spelling 'Glyndŵr' with a circumflex over the "w".

Elections in the 2020s
On 25 June the Conservative Party withdrew support for their candidate, but it was quickly confirmed on behalf of the returning officer that his name and party designation had to remain on the ballot paper. On 20 June a YouGov poll had predicted Montgomeryshire and Glyndŵr would be the only seat in Wales to be won by the Conservatives, by a narrow margin.