| Prime Ministers |
Dates |
| Sir Robert Walpole | 1721-1742 |
| Spencer Compton, 1st Earl of Wilmington | 1742-1743 |
| Henry Pelham | 1743-1754 |
| Thomas Pelham-Holles, 1st Duke of Newcastle | 1754-1756 |
| William Cavendish, 4th Duke of Devonshire | 1756-1757 |
| Thomas Pelham-Holles, 1st Duke of Newcastle | 1757-1762 |
| John Stuart, 3rd Earl of Bute | 1762-1763 |
| George Grenville | 1763-1765 |
| Charles Watson-Wentworth, 2nd Marquess of Rockingham | 1765-1766 |
| William Pitt the Elder, 1st Earl of Chatham | 1768-1768 |
| Augustus FitzRoy, 3rd Duke of Grafton | 1768-1770 |
| Frederick North, Lord North | 1770-1782 |
| Charles Watson-Wentworth, 2nd Marquess of Rockingham | 1782-1782 |
| William Petty-FitzMaurice, 2nd Earl of Shelburne | 1782-1783 |
| William Cavendish-Bentinck, 3rd Duke of Portland | 1783-1783 |
| William Pitt the Younger | 1783-1801 |
| Henry Addington | 1801-1804 |
| William Pitt the Younger | 1804-1806 |
| William Wyndham Grenville, 1st Lord of Grenville | 1806-1807 |
| William Cavendish-Bentinck, 3rd Duke of Portland | 1807-1809 |
| Spencer Perceval | 1809-1812 |
| Robert Banks Jenkinson, 2nd Earl of Liverpool | 1812-1827 |
| George Canning | 1827-1827 |
| Frederick John Robinson, 1st Viscount Goderich | 1827-1828 |
| Arthur Wellesley, 1st Duke of Wellington | 1828-1830 |
| Charles Grey, 2nd Earl Grey | 1830-1834 |
| William Lamb, 2nd Viscount Melbourne | 1834-1834 |
| Arthur Wellesley, 1st Duke of Wellington | 1834-1834 |
| Sir Robert Peel | 1834-1835 |
| William Lamb, 2nd Viscount Melbourne | 1835-1841 |
| Sir Robert Peel | 1841-1846 |
| Lord John Russell | 1846-1852 |
| Edward Smith-Stanley, 14th Earl of Derby | 1852-1852 |
| George Hamilton-Gordon, 4th Earl of Aberdeen | 1852-1855 |
| Henry John Temple, 3rd Viscount Palmerston | 1855-1858 |
| Edward Smith-Stanley, 14th Earl of Derby | 1858-1859 |
| Henry John Temple, 3rd Viscount Palmerston | 1859-1865 |
| John Russell, 1st Earl Russell | 1865-1866 |
| Edward Smith-Stanley, 14th Earl of Derby | 1866-1868 |
| Benjamin Disraeli | 1868-1868 |
| William Ewart Gladstone | 1868-1874 |
| Benjamin Disraeli | 1874-1880 |
| William Ewart Gladstone | 1880-1885 |
| Robert Gascoyne-Cecil, 3rd Marquess of Salisbury | 1885-1886 |
| William Ewart Gladstone | 1886-1886 |
| Robert Gascoyne-Cecil, 3rd Marquess of Salisbury | 1886-1892 |
| William Ewart Gladstone | 1892-1894 |
| Archibald Primrose, 5th Earl of Rosebery | 1894-1895 |
| Robert Gascoyne-Cecil, 3rd Marquess of Salisbury | 1895-1902 |
| Arthur Balfour | 1902-1905 |
| Sir Henry Campbell-Bannerman | 1905-1908 |
| Herbert Henry Asquith | 1908-1916 |
| David Lloyd George | 1916-1922 |
| Andrew Bonar Law | 1922-1923 |
| Stanley Baldwin | 1923-1924 |
| Ramsay MacDonald | 1924-1924 |
| Stanley Baldwin | 1924-1929 |
| Ramsay MacDonald | 1929-1935 |
| Stanley Baldwin | 1935-1937 |
| Neville Chamberlain | 1937-1940 |
| Winston Churchill | 1940-1945 |
| Clement Attlee | 1945-1951 |
| Sir Winston Churchill | 1951-1955 |
| Sir Anthony Eden | 1955-1957 |
| Harold Macmillan | 1957-1963 |
| Sir Alec Douglas-Home | 1963-1964 |
| Harold Wilson | 1964-1970 |
| Edward Heath | 1970-1974 |
| Harold Wilson | 1974-1976 |
| James Callaghan | 1976-1979 |
| Margaret Thatcher | 1979-1990 |
| John Major | 1990-1997 |
| Tony Blair | 1997-2007 |
| Gordon Brown | 2007-2010 |
| David Cameron | 2010-2016 |
| Theresa May | 2016-2019 |
| Boris Johnson | 2019-2022 |
| Liz Truss | 2022-2022 |
| Rishi Sunak | 2022-2024 |
| Keir Starmer | 2024- |
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