Herbert Louis Samuel, 1st Viscount SamuelGCBOMGBEPC (6 November 1870 – 5 February 1963), was a British Liberal politician who was the party leader from 1931 to 1935. He was the first nominally-practising Jew, although a personal atheist, to serve as a Cabinet minister and to become the leader of a major British political party. Samuel was the last member of the Liberal Party to hold one of the four Great Offices of State. He also served as a diplomat.
One of the adherents of “New Liberalism”, Samuel helped to draft and present social reform legislation while he was serving as a Liberal cabinet member.