A by-election was held on 20 November 2014 for the UK parliamentary constituency of Rochester and Strood in Kent, England. The sitting Member of Parliament (MP) Mark Reckless called it on joining the UK Independence Party (UKIP), from the Conservatives. He resigned his seat.

Mark John Reckless is a British lawyer and former politician who served as a Member of the Senedd (MS) for South Wales East from 2016 until 2021, having previously served as Member of Parliament (MP) for Rochester and Strood from 2010 to 2015. Initially a member of the Conservative Party, he crossed the floor to join the UK Independence Party (UKIP) in September 2014. He has since changed parties a further three times.