Swansea East (Welsh: Dwyrain Abertawe) is a borough constituency^{[n 1]} represented in the House of Commons of the Parliament of the United Kingdom by Carolyn Harris of the Labour Party.^{[n 2]}

The constituency is set to be abolished as part of the 2023 Periodic Review of Westminster constituencies and under the June 2023 final recommendations of the Boundary Commission for Wales for the next United Kingdom general election. Its' wards are to be split between Neath and Swansea East, and Swansea West.^[2]

The constituency comprises the electoral wards of Bonymaen, Cwmbwrla, Landore, Llansamlet, Morriston, Mynydd-Bach, Penderry and St. Thomas. It has been a Labour seat since 1922.

1918–1949: The County Borough of Swansea wards of East, Landore, Morriston, and St John's.

1950–1955: The County Borough of Swansea wards of Alexandra, Castle, Clase, Kilvey, Landore, Llansamlet, Morriston, Penderry, St John's, and St Thomas.

1955–1983: The County Borough of Swansea wards of Castle, Landore, Llansamlet, Morriston, Penderry, St John's, and St Thomas.^[3]

Although the constituency voted strongly to leave the European Union in 2016, an analysis of YouGov polling by Focaldata suggested support for Remain had risen from 37.9% to 50.7% in August 2018.^[4] However, in the 2019 European elections the city of Swansea as a whole voted strongly for the Brexit Party.^[5]

• Swansea East (Senedd constituency)
• List of parliamentary constituencies in West Glamorgan
• List of parliamentary constituencies in Wales