Sheffield Hallam is a constituency[n 1] represented in the House of Commons of the UK Parliament since 2019 by Olivia Blake of the Labour Party.

[n 2] The Hallam seat was previously held by Nick Clegg, the former Leader of the Liberal Democrats and Deputy Prime Minister of the United Kingdom, until he was unseated by Labour in 2017.

Hallam constituency extends from Stannington and Loxley in the north to Dore in the south and includes small parts of the city centre in the east.

[citation needed] On income-based 2004 statistics, this is the most affluent constituency one place below the top ten seats of the 650, which were spread across the South East of England (including London), with almost 12% of residents earning over £60,000 a year.

[n 3] Prior to its creation Hallam was a part of the larger Sheffield Borough constituency, which was represented by two Members of Parliament (MPs).

He handed the seat to fellow Lib Dem and future UK Deputy Prime Minister, Nick Clegg in 2005; who held it until his defeat by Labour's Jared O'Mara at the 2017 snap general election.

[12] O'Mara announced he would resign as an MP in September 2019, citing mental health issues, which would have triggered a by-election in the constituency.

2024–present: The City of Sheffield wards of: Crookes & Crosspool, Dore & Totley, Ecclesall, Fulwood, and Stannington (as they existed in 1 December 2020).

Due in part to the high profile of the constituency's then-MP Nick Clegg, who served as Deputy Prime Minister during the 2010–15 Parliament, Sheffield Hallam is unusual in having had seven constituency-specific opinion polls conducted between 2010 and 2015.

[18][19][20][21][22][23][24] In 2010, Sheffield Hallam was one of a number of constituencies that experienced problems on polling day leading to some people being unable to cast their vote.

Acting Returning Officer John Mothersole said that staff had been "caught out" by a high turnout, and the Electoral Commission instigated a review of procedures in Hallam and other constituencies where similar problems had occurred.