Mark John Reckless (born 6 December 1970) is a British Brexit Party politician serving as Member of the National Assembly for Wales (AM) for South Wales East since 2016.
He was previously elected as the Conservative Member of Parliament for Rochester and Strood in the 2010 general election.
Reckless crossed the floor to join the UK Independence Party (UKIP) in September 2014; he won re-election as a UKIP member in a by-election held in November 2014, but lost his seat to the Conservatives in the 2015 general election. Whilst a member of the House of Commons, Reckless was noted for his rebelliousness; he cast 56 votes against the whip between 2010 and 2014, making him the 13th-most rebellious Conservative in the period.
He led a rebellion of 53 Conservative MPs on the EU budget, which inflicted the first House of Commons defeat on the coalition government.
From November 2010, he served as a member of the Home Affairs Select Committee. A Eurosceptic, he was elected to the Welsh Assembly in 2016 and campaigned for the Leave side in the 2016 referendum on membership of the European Union.
He subsequently joined the pro-Brexit Brexit Party and was appointed Leader in the National Assembly by Nigel Farage in 2019.