| Prime Minister | Years | Party
|
|---|
| Sir Robert Walpole | 4 April 1721 (15 May 1730)-11 February 1742 | Whig
|
| Spencer Compton, 1st Earl of Wilmington | 16 February 1742-2 July 1743 | Whig
|
| Henry Pelham | 27 August 1743-7 March 1754 | Whig
|
| Thomas Pelham-Holles, 1st Duke of Newcastle | 16 March 1754-16 November 1756 | Whig
|
| William Cavendish, 4th Duke of Devonshire | 16 November 1756-25 June 1757 | Whig
|
| Thomas Pelham-Holles, 1st Duke of Newcastle | 2 July 1757-26 May 1762 | Whig
|
| John Stuart, 3rd Earl of Bute | 26 May 1762-16 April 1763 | Tory
|
| George Grenville | 16 April 1763-13 July 1765 | Whig
|
| Charles Watson-Wentworth, 2nd Marquess of Rockingham | 13 July 1765-30 July 1766 | Whig
|
| William Pitt, 1st Earl of Chatham | 30 July 1766-14 October 1768 | Whig
|
| Augustus Henry Fitzroy, 3rd Duke of Grafton | 14 October 1768-28 January 1770 | Whig
|
| Frederick North, Lord North | 28 January 1770-22 March 1782 | Tory
|
| Charles Watson-Wentworth, 2nd Marquess of Rockingham | 27 March - 1 July 1782 | Whig
|
| William Petty, 2nd Earl of Shelburne | 4 July 1782-2 April 1783 | Whig
|
| William Henry Cavendish-Bentinck, 3rd Duke of Portland | 2 April-19 December 1783 | Whig
|
| William Pitt The Younger | 19 December 1783-14 March 1801 | Tory
|
| Henry Addington | 17 March 1801-10 May 1804 | Tory
|
| William Pitt the Younger | 10 May 1804-23 January 1806 | Tory
|
| William Wyndham Grenville, 1st Lord Grenville | 11 February 1806-31 March 1807 | Whig
|
| William Henry Cavendish-Bentinck, 3rd Duke of Portland | 31 March 1807-4 October 1809 | Tory
|
| Spencer Perceval | 4 October 1809-11 May 1812 | Tory
|
| Robert Banks Jenkinson, 2nd Earl of Liverpool | 9 June 1812-10 April 1827 | Tory
|
| George Canning | 10 April - 8 August 1827 | Tory
|
| Frederick John Robinson, 1st Viscount Goderich | 31 August 1827-22 January 1828 | Tory
|
| Arthur Wellesley, 1st Duke of Wellington | 22 January 1828-22 November 1830 | Tory
|
| Charles Grey, 2nd Earl Grey | 22 November 1830-16 July 1834 | Whig
|
| William Lamb, 2nd Viscount Melbourne | 16 July - 17 November 1834 | Whig
|
| Sir Robert Peel | 17 November 1834 - 18 April 1835 | Tory
|
| William Lamb, 2nd Viscount Melbourne | 18 April 1835-30 August 1841 | Whig
|
| Sir Robert Peel | 30 August 1841-30 June 1846 | Tory
|
| Lord John Russell, later 1st Earl Russell | 30 June 1846-23 February 1852 | Whig
|
| Edward Geoffrey Smith Stanley, 14th Earl of Derby | 23 February-19 December 1852 | Conservative
|
| George Hamilton Gordon, 4th Earl of Aberdeen | 19 December 1852-6 February 1855 | Peelite/Coalition
|
| Henry John Temple, 3rd Viscount Palmerston | 6 February 1855-20 February 1858 | Whig
|
| Edward Geoffrey Smith Stanley, 14th Earl of Derby | 20 February 1858-12 June 1859 | Conservative
|
| Henry John Temple, 3rd Viscount Palmerston | 12 June 1859-18 October 1865 | Liberal
|
| John Russell, 1st Earl Russell | 29 October 1865-28 June 1866 | Liberal
|
| Edward Geoffrey Smith Stanley, 14th Earl of Derby | 28 June 1866-27 February 1868 | Conservative
|
| Benjamin Disraeli | 27 February - 3 December 1868 | Conservative
|
| William Ewart Gladstone | 3 December 1868-20 February 1874 | Liberal
|
| Benjamin Disraeli, from 1876 1st Earl of Beaconsfield | 20 February 1874-23 April 1880 | Conservative
|
| William Ewart Gladstone | 23 April 1880-23 June 1885 | Liberal
|
| Robert Arthur Talbot Gascoyne-Cecil, 3rd Marquess of Salisbury | 23 June 1885-1 February 1886 | Conservative
|
| William Ewart Gladstone | 1 February - 25 July 1886 | Liberal
|
| Robert Arthur Talbot Gascoyne-Cecil, 3rd Marquess of Salisbury | 3 August 1886-15 August 1892 | Conservative
|
| William Ewart Gladstone | 15 August 1892-5 March 1894 | Liberal
|
| Archibald Philip Primrose, 5th Earl of Rosebery | 5 March 1894-25 June 1895 | Liberal
|
| Robert Arthur Talbot Gascoyne-Cecil, 3rd Marquess of Salisbury | 25 June 1895-12 July 1902 | Conservative/Unionist
|
| Arthur Balfour | 12 July 1902-5 December 1905 | Conservative/Unionist
|
| Sir Henry Campbell-Bannerman | 5 December 1905-7 April 1908 | Liberal
|
| Herbert Henry Asquith | 7 April 1908-27 May 1915 | Liberal
|
| Herbert Henry Asquith | 27 May 1915-7 December 1916 | Liberal/Coalition Government
|
| David Lloyd George | 7 December 1916-23 October 1922 | National Liberal/Coalition Government
|
| Andrew Bonar Law | 23 October 1922-22 May 1923 | Conservative
|
| Stanley Baldwin | 22 May 1923-22 January 1924 | Conservative
|
| Ramsay MacDonald | 22 January - 4 November 1924 | Labour
|
| Stanley Baldwin | 4 November 1924-5 June 1929 | Conservative
|
| Ramsay MacDonald | 5 June 1929-24 August 1931 | Labour
|
| Ramsay MacDonald | 24 August 1931-7 June 1935 | National Labour/National Government
|
| Stanley Baldwin | 7 June 1935-28 May 1937 | Conservative/National Government
|
| Neville Chamberlain | 28 May 1937-10 May 1940 | Conservative/National Government
|
| Winston Churchill | 10 May 1940-26 July 1945 | Conservative/Coalition Government
|
| Clement Attlee | 26 July 1945-26 October 1951 | Labour
|
| Sir Winston Churchill | 26 October 1951-6 April 1955 | Conservative
|
| Sir Anthony Eden | 6 April 1955-10 January 1957 | Conservative
|
| Harold Macmillan | 10 January 1957-19 October 1963 | Conservative
|
| Sir Alec Douglas-Home | 19 October 1963-16 October 1964 | Conservative
|
| Harold Wilson | 16 October 1964-19 June 1970 | Labour
|
| Edward Heath | 19 June 1970-4 March 1974 | Conservative
|
| Harold Wilson | 4 March 1974-5 April 1976 | Labour
|
| James Callaghan | 5 April 1976-4 May 1979 | Labour
|
| Margaret Thatcher | 4 May 1979-28 November 1990 | Conservative
|
| John Major | 28 November 1990-2 May 1997 | Conservative
|
| Tony Blair | 2 May 1997 - | Labour
|