Who was the British prime minister when ww1 ended?

David Lloyd George- he had been Chancellor to former Prime Minister Herbert Asquith, but assumed the office of Premier when Asquith resigned in 1916 following disagreements within the War Cabinet as to how the war should proceed.

Lloyd George saw the country through the rest of the war and was present at the Versailles Peace Conference of 1919, also granting women over 30 the right to vote in recognition of the role they had played on the 'home front' during the war.