South Cambridgeshire is a constituency represented in the House of Commons of the UK Parliament since the 2024 United Kingdom general election by Pippa Heylings of the Liberal Democrats. The constituency boundaries were significantly changed under the most recent Boundary Commission review. The new constituency is also named South Cambridgeshire although it comprises approximately 60% of the original electorate who are now joined by voters formerly in South East Cambridgeshire constituency along with voters in the Cherry Hinton ward formerly in Cambridge constituency. The previous MP Anthony Browne opted to fight the newly formed St Neots and Mid Cambridgeshire seat which contains part of his old constituency.

Boundaries and boundary changes

1997–2010

''The constituency was created following the boundary review of 1995, and was first contested at the 1997 general election. Before this, much of the region had been part of the now abolished South West Cambridgeshire constituency represented by Sir Anthony Grant from 1983 to 1997, while the wards of Bar Hill, Coton, Elsworth, Girton, Longstanton and Swavesey were transferred from South East Cambridgeshire.''

2010–2024

Following the 2007 review of parliamentary representation in Cambridgeshire, the Boundary Commission made minor alterations to the existing constituencies to deal with population changes. ''Trumpington ward and parts of Coleridge and Cherry Hinton wards in the City of Cambridge were transferred to Cambridge, having previously been part of South Cambridgeshire. '' ''Additionally, parts of Cottenham ward (specifically the civil parishes of Cottenham and Rampton) and the Abingtons (Babraham, Great Abington, Little Abington and Pampisford) were added to South Cambridgeshire, having previously voted in the South East Cambridgeshire constituency. ''

Current

Further to the 2023 Periodic Review of Westminster constituencies, which came into effect for the 2024 general election, the composition of the constituency is as follows (as they existed on 1 December 2020): ''The seat was subject to major changes, with northern areas, including the new towns of Cambourne and Northstowe, being transferred to the newly created constituency of St Neots and Mid Cambridgeshire. To partly compensate, it gained the Cherry Hinton ward in the City of Cambridge and southern parts of the abolished constituency of South East Cambridgeshire, including the villages of Fulbourn and Linton.''

Members of Parliament

South West Cambridgeshire prior to 1997

Elections

Elections in the 2020s

Elections in the 2010s

Elections in the 2000s

Elections in the 1990s