Vale of Glamorgan () is a constituency represented in the House of Commons of the UK Parliament since 2024 by Kanishka Narayan, a Labour MP.
The constituency retained its name but its boundaries were altered as part of the 2023 review of Westminster constituencies and under the June 2023 final recommendations of the Boundary Commission for Wales for the 2024 general election.
1983âÂÂ2010: The Borough of Vale of Glamorgan wards of Baruc, Buttrills, Cadoc, Castleland, Court, Cowbridge, Dinas Powys, Dyfan, Gibbonsdown, Illtyd, Llandow, Llantwit Major, Peterson-super-Ely, Rhoose, St Athan, Sully, and Wenvoe.
2010âÂÂ2024: The Vale of Glamorgan County Borough electoral divisions of Baruc, Buttrills, Cadoc, Castleland, Court, Cowbridge, Dinas Powys, Dyfan, Gibbonsdown, Illtyd, Llandow and Ewenny, Llantwit Major, Peterston-super-Ely, Rhoose, St Athan, St Bride's Major, and Wenvoe. Sully ward was transferred to Cardiff South and Penarth in 2010.
2024âÂÂpresent: As a result of the 2023 boundary review, Dinas Powys was transferred to Cardiff South and Penarth, representing 8.3% of its size.
Following a local government boundary review which came into effect in May 2022, the constituency now comprises the following wards of the Vale of Glamorgan County Borough from the 2024 general election:
This marginal constituency to the west of Cardiff takes in the Labour-voting seaside resort of Barry and a number of Conservative villages and small towns, such as Cowbridge. It is a bellwether constituency, having been won by the party with a plurality of seats in every general election since the seat was created in 1983, although Labour won a by-election in 1989 during the Major ministry of 1987-1992. There have been some close shaves for both parties here in the past: Conservative Walter Sweeney got home by a mere 19 votes in 1992; and John Smith had a majority of under 2,000 in 2005. Smith stood down from Parliament due to ill health for the 2010 election, and the seat went to Conservative Alun Cairns, who served as Secretary of State for Wales from 2016 to 2019. In 2024, the constituency swung back to Labour in line with the national election result.
Of the 294 rejected ballots: