List of Prime Ministers of the United Kingdom by tenure

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20 years, 314 days
Robert Walpole
from 1721 to 1742
18 years, 343 days
William Pitt the Younger from
1783 to 1801 and 1804 to 1806
14 years, 305 days
Earl of Liverpool
from 1812 to 1827
211 days
Andrew Bonar Law
from 1922 to 1923
130 days
Viscount Goderich
from 1827 to 1828
119 days
George Canning
in 1827

This list of Prime Ministers of the United Kingdom lists each Prime Minister in order of term length. This is based on the difference between dates; if counted by number of calendar days all the figures would be one greater.

Of the 53 Prime Ministers, 9 served more than 10 years while 7 served less than 1 year.

Robert Walpole is the only person to have served as Prime Minister for more than 20 years. George Canning served as Prime Minister for less than four months before his death.

Rank by tenure[edit]

Rank by
length
of terms
Prime Minister Length by
time served
Administrations Party
1 Sir Robert Walpole 20 years, 314 days 1 Whig
2 William Pitt the Younger 18 years, 343 days 2 Pittite (Tory)
3 The Earl of Liverpool 14 years, 305 days 1 Tory
4 The Marquess of Salisbury 13 years, 252 days 3 Conservative
5 William Ewart Gladstone 12 years, 126 days 4 Liberal
6 Lord North 12 years, 58 days 1 Tory
7 Margaret Thatcher 11 years, 209 days 1 Conservative
8 Henry Pelham 10 years, 191 days 1 Whig
9 Tony Blair 10 years, 56 days 1 Labour
10 The Viscount Palmerston 9 years, 141 days 2 Whig
11 H. H. Asquith 8 years, 244 days 1 Liberal
12 Winston Churchill 8 years, 239 days 2 Conservative
13 Harold Wilson 7 years, 279 days 2 Labour
14 The Duke of Newcastle 7 years, 205 days 2 Whig
15 Stanley Baldwin 7 years, 82 days 3 Conservative
16 Benjamin Disraeli 6 years, 339 days 2 Conservative
17 Ramsay MacDonald 6 years, 289 days 3 Labour/National Labour
18 Harold Macmillan 6 years, 281 days 1 Conservative
19 The Viscount Melbourne 6 years, 255 days 2 Whig
20 John Major 6 years, 154 days 1 Conservative
21 Clement Attlee 6 years, 92 days 1 Labour
22 Lord John Russell 6 years, 11 days 2 Whig
23 David Lloyd George 5 years, 317 days 1 Liberal
24 Sir Robert Peel 5 years, 57 days 2 Conservative
25 David Cameron 4 years, 130 days (Incumbent) 1 Conservative
26 The Earl of Derby 3 years, 280 days 3 Conservative
27 Edward Heath 3 years, 259 days 1 Conservative
28 The Earl Grey 3 years, 229 days 1 Whig
29 Arthur Balfour 3 years, 145 days 1 Conservative
30 The Duke of Portland 3 years, 82 days 2 Whig/Tory
31 Henry Addington 3 years, 54 days 1 Tory
32 James Callaghan 3 years, 29 days 1 Labour
33 Neville Chamberlain 2 years, 348 days 1 Conservative
34 The Duke of Wellington 2 years, 320 days 2 Tory
35 Gordon Brown 2 years, 319 days 1 Labour
36 Spencer Perceval 2 years, 221 days 1 Tory
37 Henry Campbell-Bannerman 2 years, 122 days 1 Liberal
38 George Grenville 2 years, 85 days 1 Whig (Grenvillite)
39 The Earl of Chatham 2 years, 76 days 1 Whig (Chathamite)
40 The Earl of Aberdeen 2 years, 42 days 1 Peelite
41 Sir Anthony Eden 1 year, 279 days 1 Conservative
42 The Earl of Wilmington 1 year, 136 days 1 Whig
43 The Marquess of Rockingham 1 year, 113 days 2 Whig (Rockinghamite)
44 The Earl of Rosebery 1 year, 109 days 1 Liberal
45 The Duke of Grafton 1 year, 106 days 1 Whig (Chathamite)
46 The Lord Grenville 1 year, 42 days 1 Whig
47 Sir Alec Douglas-Home 362 days 1 Conservative
48 The Earl of Bute 317 days 1 Tory
49 The Earl of Shelburne 266 days 1 Whig (Chathamite)
50 The Duke of Devonshire 225 days 1 Whig
51 Andrew Bonar Law 211 days 1 Conservative
52 The Viscount Goderich 130 days 1 Tory (Canningite)
53 George Canning 119 days 1 Tory (Canningite)

See also[edit]

External links[edit]