UK Prime Ministers

Name John Russell, Earl Russell (Whig) Edward Smith-Stanley, Earl of Derby (Conservative) Benjamin Disraeli (Conservative) William Gladstone (Liberal) Benjamin Disraeli (Conservative) William Gladstone (Liberal) Robert Gascoyne-Cecil, Marquess of Salisbury (Conservative) William Gladstone (Liberal) Robert Gascoyne-Cecil, Marquess of Salisbury (Conservative) William Gladstone (Liberal) Archibald Primrose, Earl of Rosebery (Liberal) Robert Gascoyne-Cecil, Marquess of Salisbury (Conservative) Arthur Balfour (Conservative) Henry Campbell Bannerman (Liberal) Herbert Asquith (Liberal) David Lloyd George (Liberal) Andrew Bonar Law (Conservative) Stanley Baldwin (Conservative) Ramsay Macdonald (Labour) Stanley Baldwin (Conservative) Ramsay Macdonald (Labour) Stanley Baldwin (Conservative) Neville Chamberlain (Conservative) Winston Churchill (Conservative) Clement Attlee (Labour) Winston Churchill (Conservative) Anthony Eden (Conservative) Harold Macmillan (Conservative) Alec Douglas-Home (Conservative) Harold Wilson (Labour) Edward Heath (Conservative) Harold Wilson (Labour) James Callaghan (Labour) Margaret Thatcher (Conservative) John Major (Conservative) Tony Blair (Labour) Gordon Brown (Labour) David Cameron (Conservative) Theresa May (Conservative) Boris Johnson (Conservative)

Term (1865–1866) (1866–1868) (1868) (1868–1874) (1874–1880) (1880–1885) (1885–1886) (1886) (1886–1892) (1892–1894) (1894–1895) (1895–1902) (1902–1905) (1905–1908) (1908–1916) (1916–1922) (1922–1923) (1923–1924) (1924) (1924–1929) (1929–1935) (1935–1937) (1937–1940) (1940–1945) (1945–1951) (1951–1955) (1955–1957) (1957–1963) (1963–1964) (1964–1970) (1970–1974) (1974–1976) (1976–1979) (1979–1990) (1990–1997) (1997–2007) (2007–2010) (2010–2016) (2016–2019) (2019–)