The UK Prime Minister is the head of government, appointed by the monarch. They lead the government and make key policy decisions. They also represent the UK in international affairs and head meetings with other world leaders. They appoint and dismiss other members of the government.
| Start | End | Prime Minister |
|---|---|---|
| 2022 | - | Rishi Sunak |
| 2022 | 2022 | Liz Truss |
| 2019 | 2022 | 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 |