Jeremy Bernard Corbyn (; born 26 May 1949) is a British politician serving as leader of the Labour Party and leader of the Opposition since 2015.
Corbyn has been the Member of Parliament (MP) for Islington North since 1983.
Ideologically, he identifies as a democratic socialist.Born in Chippenham and raised in both Wiltshire and Shropshire, Corbyn joined Labour as a teenager.
Moving to London, he became a trade union representative.
In 1974, he was elected to Haringey Council and also became Secretary of Hornsey Constituency Labour Party, until elected as the MP for Islington North in 1983.
His activism has included roles in Anti-Fascist Action, the Anti-Apartheid Movement and the Campaign for Nuclear Disarmament, and advocating for a united Ireland.
As a backbench MP, he frequently voted against the Labour whip, including "New Labour" governments under Tony Blair and Gordon Brown.
A vocal opponent of the Iraq War, he chaired the Stop the War Coalition from 2011 to 2015.
He received the Gandhi International Peace Award in 2013 and the Seán MacBride Peace Prize in 2017.
Corbyn was elected Labour leader in 2015.
The party's membership increased sharply, both during the leadership campaign and following his election.
Taking the party to the left, he advocated renationalisation of public utilities and the railways, a less interventionist military policy, and reversals of austerity cuts to welfare and public services.
Although critical of the European Union, he supported continued membership in the 2016 referendum.
After Labour MPs sought to remove him in 2016, he won a second leadership contest.
In the 2017 general election, Labour increased its share of the vote to 40%, with Labour's 9.6% vote swing being its largest since 1945.
Labour, under Corbyn, achieved a net gain of 30 seats and a hung parliament, but the party remained in Opposition.
In 2019, Corbyn endorsed holding a referendum on any Brexit withdrawal agreement, with a personal stance of neutrality.
In the 2019 general election, Labour's vote share of 32% fell compared with 2017, though higher than in 2015 and 2010, and it obtained 202 seats, its fewest since 1935.
Corbyn said that he would not lead Labour into the next election.
Media coverage of Corbyn has been generally hostile.
He has condemned antisemitism but has been criticised for some of his past associations and his response to antisemitism within the Labour Party.