List of British politicians who have changed party affiliation


This is a list of members of the House of Commons of the United Kingdom, the House of Lords, British members of the European Parliament, members of the British devolved legislatures and Police and Crime Commissioners who have changed their party affiliation or who have resigned from, been suspended from or been expelled from their previous party affiliation, making them independents. When a member of a legislature switches from one party to another, this is called crossing the floor. The list details the dates, members involved, previous and new party affiliations, and an explanation for their switch.

Members of Parliament who have changed party affiliation

1918–1922 Parliament">List of MPs elected in the 1918 United Kingdom general election">1918–1922 Parliament

1950–1951 Parliament">List of MPs elected in the 1950 United Kingdom general election">1950–1951 Parliament

1979–1983 Parliament">List of MPs elected in the 1979 United Kingdom general election">1979–1983 Parliament

2015–2017 Parliament">List of MPs elected in the 2015 United Kingdom general election">2015–2017 Parliament

Members of Parliament who were suspended from their parliamentary party

These MPs were suspended by their Parliamentary Parties but continued to receive the Whip.

Members of the House of Lords who have changed party affiliation

The House of Lords is not a popularly elected body.