In the United Kingdom, the Chairman of the Conservative Party is responsible for running the party machine, overseeing Conservative Central Office. When the Conservatives are in power, the Chairman is usually a member of the Cabinet. Since 2003, Michael Howard has split the role.

• Neville Chamberlain (1930-1931)

• Lord Poole (1955-1957)
• Quintin McGarel Hogg, 2nd Viscount Hailsham (1957-1959)
• Rab Butler (1959-1961)
• Iain Macleod (1961-1963)

  Lord Poole (1963, joint chairman)

• Lord Blakenham (1963-1965)
• Edward du Cann (1965-1967)
• Anthony Barber (1967-1970)
• Peter Thomas (1970-1972)
• Lord Carrington (1972-1974)
• William Whitelaw (1974-1975)
• Peter Thorneycroft (1975-1981)
• Cecil Parkinson (1981-1983)
• John Gummer (1983-1985)
• Norman Tebbit (1985-1987)
• Peter Brooke (1987-1989)
• Kenneth Baker (1989-1990)
• Chris Patten (1990-1992)
• Sir Norman Fowler (1992-1994)
• Jeremy Hanley (1994-1995)
• Brian Mawhinney (1995-1997)
• Cecil Parkinson (1997-1998)
• Michael Ancram (1998-2001)
• David Davis (2001-2002)
• Theresa May (2002-2003)
• Liam Fox and Maurice Saatchi (2003- )