Boris JohnsonConservative2019 – Present
Theresa MayConservative2016 – 2019
David CameronConservative2010 – 2016
Gordon BrownLabour2007 – 2010
Tony BlairLabour1997 – 2007
John MajorConservative1990 – 1997
Margaret ThatcherConservative1979 – 1990
James CallaghanLabour1976 – 1979
Harold WilsonLabour1974 – 1976
Edward HeathConservative1970 – 1974
Harold WilsonLabour1964 – 1970
Alec Douglas-HomeConservative1963 – 1964
Harold MacmillanConservative1957 – 1963

 

 

[Anthony Eden](https://simple.wikipedia.org/wiki/Anthony_Eden “Anthony Eden”)

1955 – 1957

Conservative

[Winston Churchill](https://simple.wikipedia.org/wiki/Winston_Churchill “Winston Churchill”)

1951 – 1955

Conservative

[Clement Attlee](https://simple.wikipedia.org/wiki/Clement_Attlee “Clement Attlee”)

1945 – 1951

Labour

[Winston Churchill](https://simple.wikipedia.org/wiki/Winston_Churchill “Winston Churchill”)

1940 – 1945

Conservative

[Neville Chamberlain](https://simple.wikipedia.org/wiki/Neville_Chamberlain “Neville Chamberlain”)

1937 – 1940

Conservative

[Stanley Baldwin](https://simple.wikipedia.org/wiki/Stanley_Baldwin “Stanley Baldwin”)

1935 – 1937

Conservative

[Ramsay MacDonald](https://simple.wikipedia.org/wiki/Ramsay_MacDonald “Ramsay MacDonald”)

1929 – 1935

Labour

[Stanley Baldwin](https://simple.wikipedia.org/wiki/Stanley_Baldwin “Stanley Baldwin”)

1924 – 1929

Conservative

[Ramsay MacDonald](https://simple.wikipedia.org/wiki/Ramsay_MacDonald “Ramsay MacDonald”)

1924

Labour

[Stanley Baldwin](https://simple.wikipedia.org/wiki/Stanley_Baldwin “Stanley Baldwin”)

1923 – 1924

Conservative

[Andrew Bonar Law](https://simple.wikipedia.org/wiki/Andrew_Bonar_Law “Andrew Bonar Law”)

1922 – 1923

Conservative

[David Lloyd George](https://simple.wikipedia.org/wiki/David_Lloyd_George “David Lloyd George”)

1916 – 1922

Liberal

[Herbert Asquith](https://simple.wikipedia.org/wiki/Herbert_Asquith “Herbert Asquith”)

1908 – 1916

Liberal

[Henry Campbell-Bannerman](https://simple.wikipedia.org/wiki/Henry_Campbell-Bannerman “Henry Campbell-Bannerman”)

1905 – 1908

Liberal

[Arthur Balfour](https://simple.wikipedia.org/wiki/Arthur_Balfour “Arthur Balfour”)

1902 – 1905

Conservative

[Marquess of Salisbury](https://simple.wikipedia.org/wiki/Robert_Gascoyne-Cecil,_3rd_Marquess_of_Salisbury “Robert Gascoyne-Cecil, 3rd Marquess of Salisbury”)

1895 – 1902

Conservative

[Earl of Rosebery](https://simple.wikipedia.org/wiki/Archibald_Primrose,_5th_Earl_of_Rosebery “Archibald Primrose, 5th Earl of Rosebery”)

1894 – 1895

Liberal

[William Ewart Gladstone](https://simple.wikipedia.org/wiki/William_Ewart_Gladstone “William Ewart Gladstone”)

1892 – 1894

Liberal

[Marquess of Salisbury](https://simple.wikipedia.org/wiki/Robert_Gascoyne-Cecil,_3rd_Marquess_of_Salisbury “Robert Gascoyne-Cecil, 3rd Marquess of Salisbury”)

1886 – 1892

Conservative

[William Ewart Gladstone](https://simple.wikipedia.org/wiki/William_Ewart_Gladstone “William Ewart Gladstone”)

1886 – 1886

Liberal

[Marquess of Salisbury](https://simple.wikipedia.org/wiki/Robert_Gascoyne-Cecil,_3rd_Marquess_of_Salisbury “Robert Gascoyne-Cecil, 3rd Marquess of Salisbury”)

1885 – 1886

Conservative

[William Ewart Gladstone](https://simple.wikipedia.org/wiki/William_Ewart_Gladstone “William Ewart Gladstone”)

1880 – 1885

Liberal

[Benjamin Disraeli](https://simple.wikipedia.org/wiki/Benjamin_Disraeli “Benjamin Disraeli”)

1874 – 1880

Conservative

[William Ewart Gladstone](https://simple.wikipedia.org/wiki/William_Ewart_Gladstone “William Ewart Gladstone”)

1868 – 1874

Liberal

[Benjamin Disraeli](https://simple.wikipedia.org/wiki/Benjamin_Disraeli “Benjamin Disraeli”)

1868 – 1868

Conservative

[The Earl of Derby](https://simple.wikipedia.org/wiki/Edward_Smith-Stanley,_14th_Earl_of_Derby “Edward Smith-Stanley, 14th Earl of Derby”)

1866 – 1868

Conservative

[Lord John Russell](https://simple.wikipedia.org/wiki/John_Russell,_1st_Earl_Russell “John Russell, 1st Earl Russell”)

1865 – 1866

[Whig](https://simple.wikipedia.org/wiki/Whigs “Whigs”)

[Viscount Palmerston](https://simple.wikipedia.org/wiki/Henry_Temple,_3rd_Viscount_Palmerston “Henry Temple, 3rd Viscount Palmerston”)

1859 – 1865

Whig

[The Earl of Derby](https://simple.wikipedia.org/wiki/Edward_Smith-Stanley,_14th_Earl_of_Derby “Edward Smith-Stanley, 14th Earl of Derby”)

1858 – 1859

Conservative

[Viscount Palmerston](https://simple.wikipedia.org/wiki/Henry_Temple,_3rd_Viscount_Palmerston “Henry Temple, 3rd Viscount Palmerston”)

1855 – 1858

Whig

[Earl of Aberdeen](https://simple.wikipedia.org/wiki/George_Hamilton-Gordon,_4th_Earl_of_Aberdeen “George Hamilton-Gordon, 4th Earl of Aberdeen”)

1852 – 1855

Conservative

[The Earl of Derby](https://simple.wikipedia.org/wiki/Edward_Smith-Stanley,_14th_Earl_of_Derby “Edward Smith-Stanley, 14th Earl of Derby”)

1852

Conservative

[Lord John Russell](https://simple.wikipedia.org/wiki/John_Russell,_1st_Earl_Russell “John Russell, 1st Earl Russell”)

1846 – 1852

Whig

Sir [Robert Peel](https://simple.wikipedia.org/wiki/Robert_Peel “Robert Peel”)

1841 – 1846

Conservative

[Viscount Melbourne](https://simple.wikipedia.org/wiki/William_Lamb,_2nd_Viscount_Melbourne “William Lamb, 2nd Viscount Melbourne”)

1835 – 1841

Whig

Sir [Robert Peel](https://simple.wikipedia.org/wiki/Robert_Peel “Robert Peel”)

1834 – 1835

Conservative

[Duke of Wellington](https://simple.wikipedia.org/wiki/Arthur_Wellesley,_1st_Duke_of_Wellington “Arthur Wellesley, 1st Duke of Wellington”)

1834

Tory

[Viscount Melbourne](https://simple.wikipedia.org/wiki/William_Lamb,_2nd_Viscount_Melbourne “William Lamb, 2nd Viscount Melbourne”)

1834

Whig

[Earl Grey](https://simple.wikipedia.org/wiki/Charles_Grey,_2nd_Earl_Grey “Charles Grey, 2nd Earl Grey”)

1830 – 1834

Whig

[Duke of Wellington](https://simple.wikipedia.org/wiki/Duke_of_Wellington “Duke of Wellington”)

1828 – 1830

Tory

[Viscount Goderich](https://simple.wikipedia.org/wiki/Frederick_John_Robinson,_1st_Viscount_Goderich “Frederick John Robinson, 1st Viscount Goderich”)

1827 – 1828

Tory

[George Canning](https://simple.wikipedia.org/wiki/George_Canning “George Canning”)

1827 – 1827

Tory

[Earl of Liverpool](https://simple.wikipedia.org/wiki/Robert_Jenkinson,_2nd_Earl_of_Liverpool “Robert Jenkinson, 2nd Earl of Liverpool”)

1812 – 1827

Tory

[Spencer Perceval](https://simple.wikipedia.org/wiki/Spencer_Perceval “Spencer Perceval”)

1809 – 1812

Tory

[Duke of Portland](https://simple.wikipedia.org/wiki/William_Cavendish-Bentinck,_3rd_Duke_of_Portland “William Cavendish-Bentinck, 3rd Duke of Portland”)

1807 – 1809

Whig

[William Grenville](https://simple.wikipedia.org/wiki/William_Wyndham_Grenville,_1st_Baron_Grenville “William Wyndham Grenville, 1st Baron Grenville”)

1806 – 1807

Whig

[William Pitt the Younger](https://simple.wikipedia.org/wiki/William_Pitt_the_Younger “William Pitt the Younger”)

1804 – 1806

Tory

[Henry Addington](https://simple.wikipedia.org/wiki/Henry_Addington,_1st_Viscount_Sidmouth “Henry Addington, 1st Viscount Sidmouth”)

1801 – 1804

Tory

[William Pitt the Younger](https://simple.wikipedia.org/wiki/William_Pitt_the_Younger “William Pitt the Younger”)

1783 – 1801

Tory

[Duke of Portland](https://simple.wikipedia.org/wiki/William_Cavendish-Bentinck,_3rd_Duke_of_Portland “William Cavendish-Bentinck, 3rd Duke of Portland”)

1783

Whig

[Earl of Shelburne](https://simple.wikipedia.org/wiki/William_Petty,_2nd_Earl_of_Shelburne “William Petty, 2nd Earl of Shelburne”)

1782 – 1783

Whig

[Marquess of Rockingham](https://simple.wikipedia.org/wiki/Charles_Watson-Wentworth,_2nd_Marquess_of_Rockingham “Charles Watson-Wentworth, 2nd Marquess of Rockingham”)

1782

Whig

[Lord North](https://simple.wikipedia.org/wiki/Frederick_North,_Lord_North “Frederick North, Lord North”)

1770 – 1782

Tory

[Duke of Grafton](https://simple.wikipedia.org/wiki/Augustus_FitzRoy,_3rd_Duke_of_Grafton “Augustus FitzRoy, 3rd Duke of Grafton”)

1768 – 1770

Whig

[William Pitt](https://simple.wikipedia.org/wiki/William_Pitt,_1st_Earl_of_Chatham “William Pitt, 1st Earl of Chatham”)

1766 – 1768

Whig

[Marquess of Rockingham](https://simple.wikipedia.org/wiki/Charles_Watson-Wentworth,_2nd_Marquess_of_Rockingham “Charles Watson-Wentworth, 2nd Marquess of Rockingham”)

1765 – 1766

Whig

[George Grenville](https://simple.wikipedia.org/wiki/George_Grenville “George Grenville”)

1763 – 1765

Whig

[Earl of Bute](https://simple.wikipedia.org/wiki/John_Stuart,_3rd_Earl_of_Bute “John Stuart, 3rd Earl of Bute”)

1762 – 1763

Tory

[Duke of Newcastle](https://simple.wikipedia.org/wiki/Thomas_Pelham-Holles,_1st_Duke_of_Newcastle “Thomas Pelham-Holles, 1st Duke of Newcastle”)

1757 – 1762

Whig

[Duke of Devonshire](https://simple.wikipedia.org/wiki/William_Cavendish,_4th_Duke_of_Devonshire “William Cavendish, 4th Duke of Devonshire”)

1756 – 1757

Whig

[Duke of Newcastle](https://simple.wikipedia.org/wiki/Thomas_Pelham-Holles,_1st_Duke_of_Newcastle “Thomas Pelham-Holles, 1st Duke of Newcastle”)

1754 – 1756

Whig

[Henry Pelham](https://simple.wikipedia.org/wiki/Henry_Pelham “Henry Pelham”)

1743 – 1754

Whig

[Spencer Compton](https://simple.wikipedia.org/wiki/Spencer_Compton,_1st_Earl_of_Wilmington “Spencer Compton, 1st Earl of Wilmington”)

1742 – 1743

Whig

[Robert Walpole](https://simple.wikipedia.org/wiki/Robert_Walpole “Robert Walpole”)

1721 – 1742

Whig

src: https://en.wikipedia.org/wiki/List_of_prime_ministers_of_the_United_Kingdom