Lincoln is a constituency in Lincolnshire, England represented in the House of Commons of the UK Parliament since 2024 by Hamish Falconer of the Labour Party. Since the split of the City of York seat with effect from the 2010 general election, Lincoln has been the oldest constituency in continuous existence in the UK – established in 1265. Lincoln was a bellwether between October 1974 and 2017. The seat bucked the national Conservative victory in 1970 by electing a Labour MP, as it did in 2017. In 2019 and 2024, Lincoln followed the national result, electing a Conservative MP in 2019 and a Labour MP in 2024. The seat has been considered, relative to others, an ultra-marginal seat, as well as a swing seat. From 2005 until 2024, its winner's majority had not exceeded 6.9% of the vote since the 12.5% majority won in 2005 and the seat had changed hands three times since then. However, in 2024, Hamish Falconer secured the seat with a majority of 20.8%.
