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 (PCCs) 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
==Members of Parliament who were suspended from their parliamentary party==
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 ==
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 ==
Members of the European Parliament who have changed party affiliation
== London Assembly Members 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 Senedd who have changed party affiliation
== Members of the Scottish Parliament 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 ==
Members of the Northern Ireland Assembly who have changed party affiliation
== Police and crime commissioners (PCCs) who have changed party affiliation ==