Group Captain Thomas Loel Evelyn Bulkeley Guinness OBE (9 June 1906 – 31 December 1988) was a British Conservative politician, Member of Parliament (MP) for Bath (1931–1945), business magnate and philanthropist. Guinness also financed the purchase of the Calypso for the famous oceanic explorer Jacques-Yves Cousteau and his movie The Silent World (1956).
Raised in the United States and England, Loel Guinness was a son of Benjamin Solomon Guinness (1868–1947), a lawyer from whom he inherited a fortune, and Bridget Henrietta Frances Williams-Bulkeley (d.1931). He was descended from Samuel Guinness, a Dublin goldsmith (1727–1795) and the younger brother of the Guinness brewery's founder Arthur Guinness.
He also had two sisters:
He was educated at Royal Military College, Sandhurst. He gained the rank of Lieutenant in the service of the Irish Guards. In 1929, after taking flying lessons, Mr. Guinness became one of the first private citizens in England to own an airplane and soon he was a member of the County of London's Auxiliary Air Force. He later served as president of Air Work Ltd., an aircraft-parts supplier, and of British United Airways.