Sir William Foot Mitchell (26 June 1859 – 31 July 1947) was a Conservative Party politician in England. Mitchell was Managing Director of Royal Dutch Shell plc, an Anglo–Dutch multinational oil and gas company, from 10 March 1903 to 31 December 1938, including the year that Royal Dutch Petroleum and the Shell Transport and Trading Company came together to form a petroleum company in 1907. He spent much of his early career in the East, largely in Japan and China, before settling in the UK, buying Quendon Hall, Quendon, in 1907.