Separatism in the United Kingdom

Separatism in the United Kingdom may refer to the secession of any of the countries of the United Kingdom (England, Scotland, Northern Ireland and Wales) from the union. Less significant movements for separatism exist such as Cornwall within England.

The main separatist movements of the countries of the United Kingdom may be described collectively to possibly lead to the breakup of the United Kingdom, in relation to the impact a successful movement may have on the other movements.

Since May 2026, the governments of Scotland, Northern Ireland and Wales are led by separatist parties, with the main separatist party being the largest party in each of the three devolved legislatures.