Opinion polling for the 2024 United Kingdom general election was carried out by various organisations to gauge voting intention. Most of the polling companies listed are members of the British Polling Council (BPC) and abide by its disclosure rules. The opinion polls listed range from the previous election on 12 December 2019 to the election on 4 July 2024.

Graphical summaries The Conservatives led the polls for the two years following the 2019 general election, which included Brexit, the onset of the COVID-19 pandemic and vaccine rollout during the leadership of Boris Johnson. Labour took a lead following the Partygate scandal and maintained this through the Liz Truss and Rishi Sunak premierships until the 2024 election.

Guide to tables Poll results are listed in the tables below in reverse chronological order. The highest percentage figure in each poll is displayed in bold, and its background is shaded in the leading party's colour. The "lead" column shows the percentage point difference between the two parties with the highest figures. When a poll result is a tie, the figures with the highest percentages are shaded and displayed in bold.

"Green" in these tables refers to combined totals for the green parties in the United Kingdom, namely the Green Party of England and Wales, the Scottish Greens, and, for polls of the entire UK, the Green Party Northern Ireland. The three parties share a commitment to environmental policies, but are independent of one another, with each contesting elections only in its own region.

The polling company ComRes was acquired by Savanta in July 2019.Jane Bainbridge, "ComRes Sold To Savanta" , Research Live, 1 August 2019. Retrieved 13 January 2024. It was rebranded as Savanta ComRes in November 2019 and as Savanta in December 2022.Katie McQuater, "Savanta Drops ComRes, MSI, Youthsight and Mindspark Brand Names" , Research Live, 1 December 2022. Retrieved 13 January 2024. In August 2023, the market research company Omnisis rebranded its public polling arm as We Think.Mike Underwood, "Visit WeThink — the new home for polling by the team at Omnisis" , Omnisis, 30 August 2023. Retrieved 13 January 2024. In October 2023, the Norstat group acquired Panelbase. In November 2023, Kantar Public rebranded to Verian. None of these organisational changes entailed changes in methodology.

National poll results Most national opinion polls do not cover Northern Ireland, which has different major political parties from the rest of the United Kingdom. This distinction is made in the tables below in the area column, where "GB" means Great Britain (England, Scotland and Wales), and "UK" means the entire United Kingdom. Plaid Cymru only stand candidates in Wales and the Scottish National Party (SNP) only stand candidates in Scotland.

2024 When compared to the result, the final week of polls on average underestimated the Conservative and Liberal Democrat vote shares and overestimated the Labour and Reform vote shares. The projected SNP and Green vote shares were largely accurate.