This is a list of defections from the British Conservative Party to Reform UK including sitting Shadow Cabinet members, former Members of Parliament (MPs) and backbenches.
The following are MPs who defected while sitting as a MP in the House of Commoms.
The following are MPs who defected after their term as MP in the House of Commons ended.
The following are Peers who defected while sitting in the House of Lords.
The following are Member of the Scottish Parliament who have defected to Reform while sitting in the Parliament.
The following are Members of the Senedd, the Welsh Parliament who have defected to Reform while sitting in the Parliament.
{{cite web}}: CS1 maint: url-status (link)The defection means Simpson becomes Reform's sole current MSP. Michelle Ballantyne sat as a Reform member at the Scottish Parliament from January to May 2021, having left the Conservatives the previous year and sitting for a short spell as an independent. She lost her seat at the May 2021 election.
[Graham] Simpson becomes the second ever Reform UK MSP – following former Tory MSP Michelle Ballantyne's defection in the last parliamentary session before Farage became party leader.