Middlesbrough was a parliamentary constituency in the United Kingdom,[n 1] recreated in 1974, and represented in the House of Commons of the UK Parliament from 2012 until its abolition for the 2024 general election by Andy McDonald of the Labour Party.

Subject to expansion to include the Borough of Stockton wards of Mandale & Victoria, and Stainsby Hill, it was replaced by the new Middlesbrough and Thornaby East constituency.

[2] Parliament created this seat under the Representation of the People Act 1867 for the general election the next year, however the population expanded so was split into east/west areas in 1918.

From 1950 until 1974, given intervening expansion of suburbs across the country, the Metropolitan Borough of Thornaby closer to Stockton on Tees was included in the Middlesbrough West constituency.

2010–2024: The Borough of Middlesbrough wards of Acklam, Ayresome, Beckfield, Beechwood, Brookfield, Clairville, Gresham, Kader, Grove Hill, Linthorpe, Middlehaven, North Ormesby and Brambles Farm, Pallister Park, Thorntree, and University.

It suffers high unemployment and its adult population has mostly a low income; however, with modern advanced engineering, design and tourism, the city forms with nearby Redcar a bellwether for the North East region's economy firmly in the British forefront of a determined return to increasing national output.

[10] The film ToryBoy The Movie followed the election, directed by and starring John Walsh who documented how he became a candidate for the Conservative Party in Middlesbrough, challenging the sitting MP, Stuart Bell.