Baron Rugby, of Rugby in the County of Warwick, is a title in the Peerage of the United Kingdom. It was created in 1947 for the civil servant Sir John Maffey. He was Governor-General of the Sudan between 1926 and 1933 and Permanent Under-Secretary of State for the Colonies between 1933 and 1937. At Winston Churchill's request he became the first United Kingdom representative to Ireland in 1939, a post he held throughout the war years and until his retirement in 1949. The title is now held by his grandson, the third Baron, who succeeded his father in 1990.