The ceremonial county of South Yorkshire is divided into 14 parliamentary constituencies – 7 borough constituencies and 7 county constituencies.

Sheffield Hallam was the only non-Labour South Yorkshire seat for many years, and was held by Nick Clegg for 12 years, until Labour gained the seat in 2017. For a 22-year period spanning 1997–2019, the Conservatives had no seats in South Yorkshire, until the 2019 election, when they gained three. In the 1980s, the region's socialist activity (particularly in local government) led to it being referred to as the "People's Republic of South Yorkshire", it being dominated by Labour, a party with a strong socialist tradition. However, it was not until 2017 that every seat in South Yorkshire was won by Labour, a feat which was not repeated at the subsequent 2019 election.^[1] At the 2024 general election Labour regained all South Yorkshire constituencies.

  † Conservative   ‡ Labour   ¤ Liberal Democrat   # Reform UK   ¥ Green

Constituency[nb 1]	Electorate	Majority[nb 2]	Member of Parliament		Nearest Opposition		Electoral wards[2]	Map
Barnsley North CC	78,274	7,811		Dan Jarvis‡		Robert Lomas#	Barnsley Metropolitan Borough Council: Central, Cudworth, Darton East, Darton West, Monk Bretton, North East, Old Town, Royston, St. Helens.
Barnsley South CC	75,853	4,748		Stephanie Peacock‡		David White#	Barnsley Metropolitan Borough Council: Darfield, Dearne North, Dearne South, Hoyland Milton, Kingstone, Rockingham, Stairfoot, Wombwell, Worsbrough.
Doncaster Central CC	74,678	9,551		Sally Jameson‡		Nick Allen†	City of Doncaster Council: Armthorpe, Balby South, Bessacarr, Edenthorpe and Kirk Sandall, Hexthorpe and Balby North, Tickhill and Wadworth, Town, Wheatley Hills and Intake.
Doncaster East and the Isle of Axholme CC (Part)	70,154	2,311		Lee Pitcher‡		Nick Fletcher†	City of Doncaster Council: Finningley, Hatfield, Rossington and Bawtry, Thorne and Moorends. North Lincolnshire Council: Axholme Central, Axholme North, Axholme South.
Doncaster North CC	69,759	9,216		Ed Miliband‡		Glenn Bluff†	City of Doncaster Council: Adwick le Street and Carcroft, Bentley, Mexborough, Norton and Askern, Roman Ridge, Sprotbrough, Stainforth and Barnby Dun
Penistone and Stocksbridge CC	70,435	8,739		Marie Tidball‡		Miriam Cates†	Barnsley Metropolitan Borough Council: Dodworth, Penistone East, Penistone West. Sheffield City Council: East Ecclesfield, Stocksbridge and Upper Don, West Ecclesfield.
Rawmarsh and Conisbrough CC	69,133	6,908		John Healey‡		Adam Wood#	City of Doncaster Council: Conisbrough, Edlington and Warmsworth. Rotherham Metropolitan Borough Council: Bramley and Ravenfield, Hoober, Kilnhurst and Swinton East, Rawmarsh East, Rawmarsh West, Swinton Rockingham, Wath.
Rother Valley CC	69,459	998		Jake Richards‡		Alexander Stafford†	Rotherham Metropolitan Borough Council: Anston and Woodsetts, Aston and Todwick, Aughton and Swallownest, Dinnington, Hellaby and Maltby West, Maltby East, Sitwell, Thurcroft and Wickersley South, Wales.
Rotherham BC	75,929	5,490		Sarah Champion‡		John Cronly#	Rotherham Metropolitan Borough Council: Boston Castle, Brinsworth, Dalton and Thrybergh, Greasbrough, Keppel, Rother Vale, Rotherham East, Rotherham West, Wickersley North.
Sheffield Brightside and Hillsborough BC	70,389	11,600		Gill Furniss‡		Christine Kubo¥	Sheffield City Council: Burngreave, Firth Park, Hillsborough, Shiregreen and Brightside, Southey.
Sheffield Central	60,594	8,286		Abtisam Mohamed‡		Angela Argenzio¥	Sheffield City Council: Broomhill and Sharrow Vale, City, Nether Edge and Sharrow, Walkley.
Sheffield Hallam CC	72,900	8,189		Olivia Blake‡		Shaffaq Mohammed¤	Sheffield City Council: Crookes and Crosspool, Dore and Totley, Ecclesall, Fulwood, Stannington.
Sheffield Heeley BC	73,452	15,304		Louise Haigh‡		Alexi Diamond¥	Sheffield City Council: Beauchief and Greenhill, Gleadless Valley, Graves Park, Manor Castle, Park and Arbourthorne, Richmond (polling districts UB, UC and UE).
Sheffield South East	74,156	12,458		Clive Betts‡		Caroline Kampila†	Sheffield City Council: Beighton, Birley, Darnall, Mosborough, Richmond (polling districts UA, UD, UF, UG and UH), Woodhouse.

Under the Fifth Periodic Review of Westminster constituencies, the Boundary Commission for England decided to reduce the number of seats in South Yorkshire from 15 to 14, leading to significant changes. Barnsley East and Mexborough, Barnsley West and Penistone, Sheffield, Brightside, and Sheffield, Hillsborough were abolished and replaced by Barnsley East, Penistone and Stocksbridge, and Sheffield, Brightside and Hillsborough. Sheffield, Attercliffe was renamed Sheffield South East, and Wentworth was renamed Wentworth and Dearne.

Former name	Boundaries 1997–2010	Current name	Boundaries 2010–present
Barnsley Central BC Barnsley East and Mexborough CC Barnsley West and Penistone CC Doncaster Central BC Doncaster North CC Don Valley CC Rother Valley CC Rotherham BC Sheffield, Attercliffe BC Sheffield, Brightside BC Sheffield Central BC Sheffield, Hallam CC Sheffield, Heeley BC Sheffield, Hillsborough CC Wentworth CC		Barnsley Central BC Barnsley East CC Don Valley CC Doncaster Central BC Doncaster North CC Penistone and Stocksbridge CC Rother Valley CC Rotherham BC Sheffield Central BC Sheffield South East BC Sheffield, Brightside and Hillsborough BC Sheffield, Hallam CC Sheffield, Heeley BC Wentworth and Dearne CC

See 2023 Periodic Review of Westminster constituencies for further details.

Following the abandonment of the Sixth Periodic Review (the 2018 review), the Boundary Commission for England formally launched the 2023 Review on 5 January 2021.^[3] Initial proposals were published on 8 June 2021 and, following two periods of public consultation, revised proposals were published on 8 November 2022. The final proposals were published on 28 June 2023.

The commission has proposed that South Yorkshire be combined with Humberside as a sub-region of the Yorkshire and the Humber Region, resulting in the creation of a new cross-county boundary constituency named Doncaster East and the Isle of Axholme, largely replacing Don Valley. Barnsley Central and Barnsley East would be realigned to form Barnsley North and Barnsley South. Changes to Wentworth and Dearne would result in it being renamed Rawmarsh and Conisbrough.^[4][5]

The following constituencies are proposed:

Containing electoral wards from Barnsley

• Barnsley North
• Barnsley South
• Penistone and Stocksbridge (part)

Containing electoral wards from Doncaster

• Doncaster East and the Isle of Axholme (part also in North Lincolnshire)
• Doncaster North
• Doncaster Central
• Rawmarsh and Conisbrough (part)

Containing electoral wards from Rotherham

• Rawmarsh and Conisbrough (part)
• Rother Valley
• Rotherham

Containing electoral wards from Sheffield

• Penistone and Stocksbridge (part)
• Sheffield Brightside and Hillsborough
• Sheffield Central
• Sheffield Hallam
• Sheffield Heeley
• Sheffield South East

Primary data source: House of Commons research briefing – General election results from 1918 to 2019^[6]

The number of votes cast for each political party who fielded candidates in constituencies comprising South Yorkshire in the 2024 general election were as follows:

Party	Votes	%	Change from 2019	Seats	Change from 2019
Labour	249,037	47.4%	5.1%	14	3
Conservative	88,268	16.8%	15.5%	0	3
Reform	76,843	14.6%	1.0%	0	0
Greens	43,012	8.2%	5.9%	0	0
Liberal Democrats	40,758	7.8%	0	0	0
Others	27,778	5.3%	3.6%	0	0
Total	525,696	100.0		14

¹1983 & 1987 – SDP-Liberal Alliance

* Included in Other

¹1983 & 1987 – SDP-Liberal Alliance

• 
  1983
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  1987
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  1992
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  1997
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  2001
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  2005
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  2010
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  2015
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  2017
• 
  2019
• 
  2024

A cell marked → (with a different colour background to the preceding cell) indicates that the previous MP continued to sit under a new party name.

  Conservative   Labour   Liberal Democrats

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¹also includes some areas of Humberside

• List of parliamentary constituencies in Yorkshire and the Humber