This article summarises the views and voting record of Jeremy Corbyn, who was the Leader of the Opposition and Leader of the Labour Party in the United Kingdom from 12 September 2015 until 4 April 2020.

Jeremy Corbyn was elected as Leader of the Opposition in September 2015, following the resignation of Ed Miliband after Labour's defeat at the 2015 general election.

Jeremy Corbyn assumed the position of Leader of the Opposition after being elected as leader of the Labour Party on 12 September 2015; the election was triggered by Ed Miliband's resignation following the Labour Party's electoral defeat at the 2015 general election when David Cameron formed a majority Conservative government.