The UK Independence Party is a Eurosceptic, right-wing populist political party in the United Kingdom. The party reached its greatest level of success in the mid-2010s, when it gained two members of parliament and was the largest party representing the UK in the European Parliament. The party has been led by Lois Perry since May 2024.

Right-wing populism, also called national populism and right-wing nationalism, is a political ideology that combines right-wing politics with populist rhetoric and themes. Its rhetoric employs anti-elitist sentiments, opposition to the Establishment, and speaking to or for the "common people". Recurring themes of right-wing populists include neo-nationalism, social conservatism, economic nationalism and fiscal conservatism. Frequently, they aim to defend a national culture, identity, and economy against perceived attacks by outsiders. Right-wing populism has remained the dominant political force in the Republican Party in the United States since the 2010s.