The Leader of the Labour Party is the head of the Labour Party of the United Kingdom.The incumbent is Keir Starmer who was elected in April 2020, succeeding Jeremy Corbyn.. Harriet Harman was the deputy leader of the Labour Party and acting leader since the resignation of Ed Miliband on 8 May 2015 following Labour's defeat at the 2015 general election. The Labour Party Labour Central, Kings Manor Newcastle upon Tyne NE1 6PA Promoted by Jennie Formby on behalf of the Labour Party both at Southside, 105 Victoria Street, London SW1E 6QT. The new leader of Britain’s main opposition Labour party on Saturday apologised to the Jewish community for anti-Semitism in its ranks, calling it a “stain” and pledging to stamp it out. Keir Starmer was elected leader of the U.K.'s main opposition Labour Party on Saturday, after a contest thrown into turmoil by the coronavirus outbreak. Alan Kelly faces uphill struggle as 13th leader of Labour Party First big decision Tipperary TD must make is whether to enter coalition talks