This article lists each prime minister of the United Kingdom by order of their tenure start. There is a difference in numbering due to prime ministers being in office for different, non-consecutive terms; for example, current Prime Minister Boris Johnson is the 77th prime minister, but just the 55th person to hold this office. [1]
Sir Robert Walpole is generally regarded as the de facto first prime minister of Great Britain. While serving multiple, non-consecutive terms have been frequent throughout history, that practice has generally died out in recent times, with Harold Wilson being the last prime minister to do so nearly 50 years ago.
# | Prime Minister | Term start | Terms in office | Tenure length | Political party |
---|---|---|---|---|---|
1 | Sir Robert Walpole | 1721 | 1 | 20 years, 314 days | Whig |
2 | The Earl of Wilmington | 1742 | 1 | 1 year, 119 days | Whig |
3 | Henry Pelham | 1743 | 1 | 10 years, 191 days | Whig |
4 | The Duke of Newcastle | 1754 | 2 | 7 years, 205 days | Whig |
5 | The Duke of Devonshire | 1756 | 1 | 225 days | Whig |
6 | The Earl of Bute | 1762 | 1 | 317 days | Tory |
7 | George Grenville | 1763 | 1 | 2 years, 85 days | Whig (Grenvillite) |
8 | The Marquess of Rockingham | 1765 | 2 | 1 year, 113 days | Whig (Rockinghamite) |
9 | The Earl of Chatham | 1766 | 1 | 2 years, 76 days | Whig (Chathamite) |
10 | The Duke of Grafton | 1768 | 1 | 1 year, 106 days | Whig (Chathamite) |
11 | Lord North | 1770 | 1 | 12 years, 58 days | Tory (Northite) |
12 | The Earl of Shelburne | 1782 | 1 | 266 days | Whig (Chathamite) |
13 | The Duke of Portland | 1783 | 2 | 3 years, 82 days | Whig / Tory (Pittite) |
14 | William Pitt the Younger | 1783 | 2 | 18 years, 343 days | Tory (Pittite) |
15 | Henry Addington | 1801 | 1 | 3 years, 54 days | Tory (Pittite) |
16 | The Lord Grenville | 1806 | 1 | 1 year, 42 days | Whig |
17 | Spencer Perceval | 1809 | 1 | 2 years, 221 days | Tory (Pittite) |
18 | The Earl of Liverpool | 1812 | 1 | 14 years, 305 days | Tory (Pittite) |
19 | George Canning | 1827 | 1 | 119 days | Tory (Canningite) |
20 | The Viscount Goderich | 1827 | 1 | 144 days | Tory (Canningite) |
21 | The Duke of Wellington | 1828 | 2 | 2 years, 320 days | Tory |
22 | The Earl Grey | 1830 | 1 | 3 years, 229 days | Whig |
23 | The Viscount Melbourne | 1834 | 2 | 6 years, 255 days | Whig |
24 | Sir Robert Peel | 1834 | 2 | 5 years, 57 days | Conservative |
25 | Lord John Russell | 1846 | 2 | 6 years, 11 days | Whig / Liberal |
26 | The Earl of Derby | 1852 | 3 | 3 years, 280 days | Conservative |
27 | The Earl of Aberdeen | 1852 | 1 | 2 years, 42 days | Peelite |
28 | The Viscount Palmerston | 1855 | 2 | 9 years, 141 days | Whig / Liberal |
29 | Benjamin Disraeli | 1868 | 2 | 6 years, 339 days | Conservative |
30 | William Ewart Gladstone | 1868 | 4 | 12 years, 126 days | Liberal |
31 | The Marquess of Salisbury | 1885 | 3 | 13 years, 252 days | Conservative |
32 | The Earl of Rosebery | 1894 | 1 | 1 year, 109 days | Liberal |
33 | Arthur Balfour | 1902 | 1 | 3 years, 145 days | Conservative |
34 | Henry Campbell-Bannerman | 1905 | 1 | 2 years, 122 days | Liberal |
35 | H. H. Asquith | 1908 | 1 | 8 years, 244 days | Liberal |
36 | David Lloyd George | 1916 | 1 | 5 years, 317 days | Liberal |
37 | Bonar Law | 1922 | 1 | 211 days | Conservative (Scot. Unionist) |
38 | Stanley Baldwin | 1923 | 3 | 7 years, 82 days | Conservative |
39 | Ramsay MacDonald | 1924 | 2 | 6 years, 289 days | Labour / National Labour |
40 | Neville Chamberlain | 1937 | 1 | 2 years, 348 days | Conservative |
41 | Sir Winston Churchill | 1940 | 2 | 8 years, 239 days | Conservative |
42 | Clement Attlee | 1945 | 1 | 6 years, 92 days | Labour |
43 | Sir Anthony Eden | 1955 | 1 | 1 year, 279 days | Conservative |
44 | Harold Macmillan | 1957 | 1 | 6 years, 281 days | Conservative |
45 | Sir Alec Douglas-Home | 1963 | 1 | 363 days | Conservative (Scot. Unionist) |
46 | Harold Wilson | 1964 | 2 | 7 years, 279 days | Labour |
47 | Edward Heath | 1970 | 1 | 3 years, 259 days | Conservative |
48 | James Callaghan | 1976 | 1 | 3 years, 29 days | Labour |
49 | Margaret Thatcher | 1979 | 1 | 11 years, 208 days | Conservative |
50 | John Major | 1990 | 1 | 6 years, 155 days | Conservative |
51 | Tony Blair | 1997 | 1 | 10 years, 56 days | Labour |
52 | Gordon Brown | 2007 | 1 | 2 years, 318 days | Labour |
53 | David Cameron | 2010 | 1 | 6 years, 63 days | Conservative |
54 | Theresa May | 2016 | 1 | 3 years, 11 days | Conservative |
55 | Boris Johnson | 2019 | 1 | 2 years, 10 days(incumbent) | Conservative |
# | Prime Minister | Term start | Term | Tenure length | Political party |
---|---|---|---|---|---|
1 | Sir Robert Walpole | 1721 | 1st | 20 years, 314 days | Whig |
2 | The Earl of Wilmington | 1742 | 1st | 1 year, 119 days | Whig |
3 | Henry Pelham | 1743 | 1st | 10 years, 191 days | Whig |
4 | The Duke of Newcastle | 1754 | 1st | 2 years and 241 days | Whig |
5 | The Duke of Devonshire | 1756 | 1st | 225 days | Whig |
6 | The Duke of Newcastle | 1757 | 2nd | 4 years and 332 days | Whig |
7 | The Earl of Bute | 1762 | 1st | 317 days | Tory |
8 | George Grenville | 1763 | 1st | 2 years, 85 days | Whig (Grenvillite) |
9 | The Marquess of Rockingham | 1765 | 1st | 1 year and 18 days | Whig (Rockinghamite) |
10 | The Earl of Chatham | 1766 | 1st | 2 years, 76 days | Whig (Chathamite) |
11 | The Duke of Grafton | 1768 | 1st | 1 year, 106 days | Whig (Chathamite) |
12 | Lord North | 1770 | 1st | 12 years, 58 days | Tory (Northite) |
13 | The Marquess of Rockingham | 1782 | 2nd | 97 days | Whig (Rockinghamite) |
14 | The Earl of Shelburne | 1782 | 1st | 266 days | Whig (Chathamite) |
15 | The Duke of Portland | 1783 | 1st | 261 days | Whig / Tory (Pittite) |
16 | William Pitt the Younger | 1783 | 1st | 17 years and 87 days | Tory (Pittite) |
17 | Henry Addington | 1801 | 1st | 3 years, 54 days | Tory (Pittite) |
18 | William Pitt the Younger | 1801 | 2nd | 1 year and 259 days | Tory (Pittite) |
19 | The Lord Grenville | 1806 | 1st | 1 year, 42 days | Whig |
20 | The Duke of Portland | 1807 | 2nd | 2 years and 188 days | Whig / Tory (Pittite) |
21 | Spencer Perceval | 1809 | 1st | 2 years, 221 days | Tory (Pittite) |
22 | The Earl of Liverpool | 1812 | 1st | 14 years, 305 days | Tory (Pittite) |
23 | The Viscount Goderich | 1827 | 1st | 144 days | Tory (Canningite) |
24 | George Canning | 1827 | 1st | 119 days | Tory (Canningite) |
25 | The Duke of Wellington | 1828 | 1st | 2 years and 299 days | Tory |
26 | The Earl Grey | 1830 | 1st | 3 years, 229 days | Whig |
27 | The Viscount Melbourne | 1834 | 1st | 122 days | Whig |
28 | The Duke of Wellington | 1834 | 2nd | 23 days | Tory |
29 | Sir Robert Peel | 1834 | 1st | 120 days | Conservative |
30 | The Viscount Melbourne | 1835 | 2nd | 6 years and 135 days | Whig |
31 | Sir Robert Peel | 1841 | 2nd | 4 years and 304 days | Conservative |
32 | Lord John Russell | 1846 | 1st | 5 years and 237 days | Whig / Liberal |
33 | The Earl of Derby | 1852 | 1st | 299 days | Conservative |
34 | The Earl of Aberdeen | 1852 | 1st | 2 years, 42 days | Peelite |
35 | The Viscount Palmerston | 1855 | 1st | 3 years and 14 days | Whig / Liberal |
36 | The Earl of Derby | 1858 | 2nd | 1 year and 112 days | Conservative |
37 | The Viscount Palmerston | 1859 | 2nd | 6 years and 129 days | Whig / Liberal |
38 | Lord John Russell | 1865 | 2nd | 241 days | Whig / Liberal |
39 | The Earl of Derby | 1866 | 3rd | 1 year and 243 days | Conservative |
40 | Benjamin Disraeli | 1868 | 1st | 279 days | Conservative |
41 | William Ewart Gladstone | 1868 | 1st | 5 years and 77 days | Liberal |
42 | Benjamin Disraeli | 1874 | 2nd | 6 years and 62 days | Conservative |
43 | William Ewart Gladstone | 1880 | 2nd | 5 years and 48 days | Liberal |
44 | The Marquess of Salisbury | 1885 | 1st | 220 days | Conservative |
45 | William Ewart Gladstone | 1886 | 3rd | 170 days | Liberal |
46 | The Marquess of Salisbury | 1886 | 2nd | 6 years and 18 days | Conservative |
47 | William Ewart Gladstone | 1892 | 4th | 1 year and 200 days | Liberal |
48 | The Earl of Rosebery | 1894 | 1st | 1 year, 109 days | Liberal |
49 | The Marquess of Salisbury | 1895 | 3rd | 7 years and 17 days | Conservative |
50 | Arthur Balfour | 1902 | 1st | 3 years, 145 days | Conservative |
51 | Henry Campbell-Bannerman | 1905 | 1st | 2 years, 122 days | Liberal |
52 | H. H. Asquith | 1908 | 1st | 8 years, 244 days | Liberal |
53 | David Lloyd George | 1916 | 1st | 5 years, 317 days | Liberal |
54 | Bonar Law | 1922 | 1st | 211 days | Conservative (Scot. Unionist) |
55 | Stanley Baldwin | 1923 | 1st | 246 days | Conservative |
56 | Ramsay MacDonald | 1924 | 1st | 288 days | Labour / National Labour |
57 | Stanley Baldwin | 1924 | 2nd | 4 years and 213 days | Conservative |
58 | Ramsay MacDonald | 1929 | 2nd | 6 years and 3 days | Labour / National Labour |
59 | Stanley Baldwin | 1935 | 3rd | 1 year and 356 days | Conservative |
60 | Neville Chamberlain | 1937 | 1st | 2 years, 348 days | Conservative |
61 | Sir Winston Churchill | 1940 | 1st | 5 years and 78 days | Conservative |
62 | Clement Attlee | 1945 | 1st | 6 years, 92 days | Labour |
63 | Sir Winston Churchill | 1951 | 2nd | 3 years and 162 days | Conservative |
64 | Sir Anthony Eden | 1955 | 1st | 1 year, 279 days | Conservative |
65 | Harold Macmillan | 1957 | 1st | 6 years, 281 days | Conservative |
66 | Sir Alec Douglas-Home | 1963 | 1st | 363 days | Conservative (Scot. Unionist) |
67 | Harold Wilson | 1964 | 1st | 5 years and 247 days | Labour |
68 | Edward Heath | 1970 | 1st | 3 years, 259 days | Conservative |
69 | Harold Wilson | 1974 | 2nd | 2 years and 33 days | Labour |
70 | James Callaghan | 1976 | 1st | 3 years, 29 days | Labour |
71 | Margaret Thatcher | 1979 | 1st | 11 years, 208 days | Conservative |
72 | John Major | 1990 | 1st | 6 years, 155 days | Conservative |
73 | Tony Blair | 1997 | 1st | 10 years, 56 days | Labour |
74 | Gordon Brown | 2007 | 1st | 2 years, 318 days | Labour |
75 | David Cameron | 2010 | 1st | 6 years, 63 days | Conservative |
76 | Theresa May | 2016 | 1st | 3 years, 11 days | Conservative |
77 | Boris Johnson | 2019 | 1st | 2 years, 10 days(incumbent) | Conservative |
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