| Start | End | Prime Minister |
|---|---|---|
| 2019 | - | Boris Johnson |
| 2016 | 2019 | Theresa May |
| 2010 | 2016 | David Cameron |
| 2007 | 2010 | Gordon Brown |
| 1997 | 2007 | Tony Blair |
| 1990 | 1997 | Sir John Major |
| 1979 | 1990 | Margaret Thatcher |
| 1976 | 1979 | James Callaghan |
| 1974 | 1976 | Harold Wilson |
| 1970 | 1974 | Sir Edward Heath |
| 1964 | 1970 | Harold Wilson |
| 1963 | 1964 | Sir Alec Douglas-Home |
| 1957 | 1963 | Harold Macmillan |
| 1955 | 1957 | Sir Anthony Eden |
| 1951 | 1955 | Sir Winston Churchill |
| 1945 | 1951 | Clement Attlee |
| 1940 | 1945 | Sir Winston Churchill |
| 1937 | 1940 | Neville Chamberlain |
| 1935 | 1937 | Stanley Baldwin |
| 1929 | 1935 | James Ramsay MacDonald |
| 1924 | 1929 | Stanley Baldwin |
| 1924 | 1924 | James Ramsay MacDonald |
| 1923 | 1924 | Stanley Baldwin |
| 1922 | 1923 | Andrew Bonar Law |
| 1916 | 1922 | David Lloyd George |
| 1908 | 1916 | Herbert Henry Asquith |
| 1905 | 1908 | Sir Henry Campbell-Bannerman |
| 1902 | 1905 | Arthur James Balfour |
| 1895 | 1902 | Robert Gascoyne-Cecil |
| 1894 | 1895 | Archibald Primrose |
| 1892 | 1894 | William Ewart Gladstone |
| 1886 | 1892 | Robert Gascoyne-Cecil |
| 1886 | 1886 | William Ewart Gladstone |
| 1885 | 1886 | Robert Gascoyne-Cecil |
| 1880 | 1885 | William Ewart Gladstone |
| 1874 | 1880 | Benjamin Disraeli |
| 1868 | 1874 | William Ewart Gladstone |
| 1868 | 1868 | Benjamin Disraeli |
| 1866 | 1868 | Edward Smith Stanley |
| 1865 | 1866 | Lord John Russell |
| 1859 | 1865 | Henry John Temple |
| 1858 | 1859 | Edward Smith Stanley |
| 1855 | 1858 | Henry John Temple |
| 1852 | 1855 | George Hamilton Gordon |
| 1852 | 1852 | Edward Smith Stanley |
| 1846 | 1852 | Lord John Russell |
| 1841 | 1846 | Sir Robert Peel |
| 1835 | 1841 | William Lamb |
| 1834 | 1835 | Sir Robert Peel |
| 1834 | 1834 | Arthur Wellesley |
| 1834 | 1834 | William Lamb |
| 1830 | 1834 | Charles Grey |
| 1828 | 1830 | Arthur Wellesley |
| 1827 | 1828 | Frederick Robinson |
| 1827 | 1827 | George Canning |
| 1812 | 1827 | Robert Banks Jenkinson |
| 1809 | 1812 | Spencer Perceval |
| 1807 | 1809 | William Bentinck |
| 1806 | 1807 | William Wyndham Grenville |
| 1804 | 1806 | William Pitt le Jeune |
| 1801 | 1804 | Henry Addington |
| 1783 | 1801 | William Pitt le Jeune |
| 1783 | 1783 | William Bentinck |
| 1782 | 1783 | William Petty |
| 1770 | 1782 | Lord Frederick North |
| 1768 | 1770 | Augustus Henry Fitzroy |
| 1766 | 1768 | William Pitt l'Ancien |
| 1765 | 1766 | Charles Watson-Wentworth |
| 1763 | 1765 | George Grenville |
| 1762 | 1763 | John Stuart |
| 1757 | 1762 | Thomas Pelham-Holles |
| 1756 | 1757 | William Cavendish |
| 1754 | 1756 | Thomas Pelham-Holles |
| 1743 | 1754 | Henry Pelham |
| 1742 | 1743 | Spencer Compton |
| 1721 | 1742 | Sir Robert Walpole |