New Labour is the name given to the period in the history of the British Labour Party from the mid to late 1990s until 2010 under the leadership of Tony Blair and Gordon Brown. The name dates from a conference slogan first used by the party in 1994, later seen in a draft manifesto which was published in 1996 and titled New Labour, New Life for Britain. It was presented as the brand of a newly reformed party that had altered Clause IV and endorsed market economics. The branding was extensively used while the party was in government between 1997 and 2010. New Labour was influenced by the political thinking of Anthony Crosland and the leadership of Blair and Brown as well as Peter Mandelson and Alastair Campbell's media campaigning. The political philosophy of New Labour was influenced by the party's development of Anthony Giddens' Third Way which attempted to provide a synthesis between capitalism and socialism. The party emphasised the importance of social justice, rather than equality, emphasising the need for equality of opportunity and believed in the use of markets to deliver economic efficiency and social justice.

The Labour Party is a political party in the United Kingdom that has been described as an alliance of social democrats, democratic socialists, and trade unionists. The Labour Party sits on the centre-left of the political spectrum. In all general elections since 1922, Labour has been either the governing party or the Official Opposition. There have been six Labour prime ministers and thirteen Labour ministries. Since the 2010 general election, it has been the second-largest UK political party by the number of votes cast, behind the Conservative Party and ahead of the Liberal Democrats. The party holds the annual Labour Party Conference.