List of prime ministers of the United Kingdom by tenure start

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, the 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.

Ordered by tenure, by person
# 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 1 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 William Pitt the Younger 1783 2 18 years, 343 days Tory (Pittite)
14 The Duke of Portland 1783 2 3 years, 82 days Whig / 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 The Viscount Goderich 1827 1 144 days Tory (Canningite)
20 George Canning 1827 1 119 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 William Ewart Gladstone 1868 4 12 years, 126 days Liberal
30 Benjamin Disraeli 1868 2 6 years, 339 days Conservative
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 1 317 days (incumbent) Conservative

Ordered by term
# 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 317 days (incumbent) Conservative

References
  1. "Boris Johnson becomes 55th Prime Minister of the United Kingdom".
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.