Sir William Emsley Carr (1 May 1867 – 5 August 1941) was a British newspaper editor, who edited the News of the World for more than fifty years. Carr was born and raised in the Hunslet district of Leeds. His uncle, Henry Lascelles Carr, was a founder and editor of the Western Mail, based in Cardiff, and he saw promise in Emsley, and summoned him to work as a journalist on the newspaper. In 1891, Lascelles Carr was part of a syndicate which purchased the News of the World, a London-based Sunday newspaper with a small circulation, and he decided to appoint his nephew as its new editor.