The 2008 Haltemprice and Howden by-election was a by-election held in the United Kingdom on 10 July 2008 to elect a new Member of Parliament (MP) for constituency of Haltemprice and Howden. The by-election was triggered by the surprise and controversial resignation from the House of Commons of the sitting MP David Davis on 12 June 2008. Davis's stated intention was to spark a wider public debate on the perceived erosion of civil liberties in the UK by re-contesting his seat on this single issue platform, launched as the David Davis for Freedom campaign. The two other main political parties, Labour and the Liberal Democrats, declined to field candidates; the Liberal Democrats as they supported Davis in this issue and Labour as they considered the election a "political stunt".

Sir David Michael Davis is a British politician who served as Shadow Home Secretary from 2003 to 2008 and Secretary of State for Exiting the European Union from 2016 to 2018. A member of the Conservative Party, he has served as the Member of Parliament (MP) for Haltemprice and Howden, formerly Boothferry, since 1987. Davis was sworn of the Privy Council in the 1997 New Year Honours, having previously been Minister of State for Europe from 1994 to 1997.