Clement Attlee, English soldier, lawyer, and politician, Prime Minister of the United Kingdom (born 1883)

Clement Richard Attlee, 1st Earl Attlee was a British statesman who was Prime Minister of the United Kingdom from 1945 to 1951 and Leader of the Labour Party from 1935 to 1955. Attlee was Deputy Prime Minister during the wartime coalition government under Winston Churchill, and Leader of the Opposition on three occasions: from 1935 to 1940, briefly in 1945 and from 1951 to 1955. He remains the longest serving Labour leader.

The prime minister of the United Kingdom is the head of government of the United Kingdom. The prime minister advises the sovereign on the exercise of much of the royal prerogative, chairs the Cabinet, and selects its ministers. Modern prime ministers hold office by virtue of their ability to command the confidence of the House of Commons, so they are invariably members of Parliament.