List of United Kingdom Labour Party leaders

Leader of the Labour Party
Incumbent Jeremy Corbyn since 12 September 2015
Member of	National Executive Committee
Precursor	Chair of the PLP
Inaugural holder	Keir Hardie
Formation	17 January 1906
Deputy	Tom Watson

The Leader of the Labour Party is the most senior politician within the Labour Party in the United Kingdom. Since 12 September 2015, the office has been held by Jeremy Corbyn, who represents the constituency of Islington North.

Harriet Harman was the Deputy Leader of the Labour Party and also Acting Leader since the resignation of Ed Miliband on 8 May 2015 following the 2015 general election. On 12 September 2015, she was replaced by Jeremy Corbyn, who won the Labour leadership election. Tom Watson is now the Deputy Leader of the Labour Party, elected on the same day. Corbyn's leadership was challenged in mid 2016, but he was again elected in the subsequent leadership election.

The post of Leader of the Labour Party was officially created in 1922. Before this time, between when Labour MPs were first elected in 1906 and the election in 1922, when substantial gains were made, the post was known as Chairman of the Parliamentary Labour Party. In 1970, the positions of Leader of the Labour Party and Chairman of the Parliamentary Labour Party were permanently split.

In 1921, John Robert Clynes became the first Leader of the Labour Party to be born in England; prior to this, all Leaders had been born in Scotland. In 1924, Ramsay MacDonald became the first ever Labour Prime Minister, leading a minority administration. Clement Attlee would become the first Leader to lead a majority government in 1945. The first to be born in Wales was Neil Kinnock, who was elected in 1983. The most electorally successful Labour Leaders to date are Tony Blair, who won three in 1997, 2001 (both landslide victories), and 2005, and Harold Wilson, who won three general elections out of five contested, in 1964, 1966 and October 1974.