Robert Weld Mitchell MBE (10 August 1915 – 13 December 1994) was a Progressive Conservative party member of the House of Commons of Canada and a lawyer. He was born in Toronto, the son of Percy Dawson Mitchell and Olive Weld, and was educated at Ridley College and Osgoode Hall. Mitchell was called to the Ontario bar in 1958. He was a director of William Weld Co. Ltd., served as president of the London Boy Scouts Association, was president of the London Chamber of Commerce from 1962 to 1963 and served as vice-president of Supertest Petroleum, later part of BP Canada.