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 (such as the Scottish Parliament, Senedd, and Northern Ireland Assembly) and Police and Crime Commissioners (PCCs) who have changed their party affiliation (i.e. abandoning a previous party membership to take up a new one) 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

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.

Members of the European Parliament who have changed party affiliation

London Assembly Members who have changed party affiliation

Members of the Senedd who have changed party affiliation

Members of the Scottish Parliament who have changed party affiliation

Members of the Northern Ireland Assembly who have changed party affiliation

Police and crime commissioners (PCCs) who have changed party affiliation

References

Bibliography

• David Butler and Gareth Butler, Twentieth Century British Political Facts (Palgrave Macmillan, 2005)