Chief Whip of the Conservative Party
The Chief Whip of the Conservative Party oversees the whipping system in the party, which is responsible for ensuring that Conservative MPs or members of the House of Lords attend and vote in parliament in the desired way of the party leadership.
Chief Whips, of which two are appointed in the party, a member of the House of Commons and a member of the House of Lords, also help to organise their party's contribution to parliamentary business.
The party leadership may allow members to have a free vote based on their own conscience rather than party policy, which means the chief whip is not required to influence the way members vote.
This is a list of people who have served as Chief Whip of the Conservative Party, previously the Tory Party, in the Parliament of the United Kingdom.
On 23 July 2019, following his election as Leader of the Conservative Party, Boris Johnson announced that the new Chief Whip would be Mark Spencer who would take office on 24 July 2019 when Boris Johnson becomes Prime Minister.
House of Commons
| Year | Name | Constituency |
| circa 1802 | William Holmes | Haslemere |
| 1835 | Sir George Clerk | Midlothian |
| 1837 | Sir Thomas Francis Fremantle | Buckingham |
| 1844 | Sir John Young | Cavan |
| 1846 | William Beresford | Harwich |
| 1850 | Forbes Mackenzie | Peeblesshire |
| 1853 | Sir William Jolliffe | Petersfield |
| 1859 | Colonel Thomas Edward Taylor | Dublin County |
| 1868 | Gerard Noel | Rutland |
| 1873 | Colonel Thomas Edward Taylor | Dublin County |
| 1874 | Sir William Hart Dyke | Mid Kent |
| 1880 | Rowland Winn | North Lincolnshire |
| 1885 | Aretas Akers-Douglas | St Augustine's |
| 1895 | Sir William Hood Walrond | Tiverton |
| 1902 | Sir Alexander Acland Hood | Wellington |
| 1911 | Lord Balcarres | Chorley |
| 1913 | Lord Edmund Talbot | Chichester |
| 1921 | Leslie Wilson | Reading |
| 1923 | Bolton Eyres-Monsell | Evesham |
| 1931 | David Margesson | Rugby |
| 1941 | James Stuart | Moray and Nairn |
| 1948 | Patrick Buchan-Hepburn | East Toxteth |
| 1955 | Edward Heath | Bexley |
| 1959 | Martin Redmayne | Rushcliffe |
| 1964 | William Whitelaw | Penrith and The Border |
| 1970 | Francis Pym | Cambridgeshire |
| 1973 | Humphrey Atkins | Spelthorne |
| 1979 | Michael Jopling | Westmorland |
| 1983 | John Wakeham | Colchester and Maldon |
| 1987 | David Waddington | Ribble Valley |
| 1989 | Timothy Renton | Mid Sussex |
| 1990 | Richard Ryder | Mid Norfolk |
| 1994 | Alastair Goodlad | Eddisbury |
| 1997 | James Arbuthnot | North East Hampshire |
| 2001 | David Maclean | Penrith and The Border |
| 2005 | Patrick McLoughlin | West Derbyshire |
| 2012 | Andrew Mitchell | Sutton Coldfield |
| 2012 | Sir George Young | North West Hampshire |
| 2014 | Michael Gove | Surrey Heath |
| 2015 | Mark Harper | Forest of Dean |
| 2016–17 | Gavin Williamson | South Staffordshire |
| 2017–2019 | Julian Smith | Skipton and Ripon |
| 2019–present | Mark Spencer | Sherwood |
House of Lords
| Year | Name |
| before 1852 | The Earl Nelson |
| 1852 | The Lord Colville of Culross |
| c.1870 | The Lord Skelmersdale |
| 1885 | The Earl of Kintore |
| 1889 | The Earl of Limerick |
| 1896 | The Earl Waldegrave |
| 1911 | The Duke of Devonshire |
| 1916 | The Lord Hylton |
| 1922 | The Earl of Clarendon |
| 1925 | The Earl of Plymouth |
| 1929 | The Earl of Lucan |
| 1940 | The Lord Templemore |
| 1945 | The Earl Fortescue |
| 1957 | The Earl St Aldwyn |
| 1977 | The Lord Denham |
| 1991 | The Lord Hesketh |
| 1993 | The Viscount Ullswater |
| 1994 | The Lord Strathclyde |
| 1998 | The Lord Henley |
| 2001 | The Lord Cope of Berkeley |
| 2007 | The Lady Anelay of St Johns |
| 2014 | The Lord Taylor of Holbeach |
| 2019 | The Lord Ashton of Hyde |