Richard John Durley MBE (11 February 1868 – 13 August 1948) was Professor of Mechanical Engineering at McGill University (1901–1912), one of three commission members for the design of the University of British Columbia and, during World War I, Officer-in-Charge of Gauges and Standards in the Canadian Ministry of Munitions Department of Inspection.After the war he was appointed a founding vice-chairman and secretary of the Canadian Engineering Standards Committee with Sir John Kennedy acting as chairman.
In 1919, he was appointed Secretary of the Canadian Engineering Standards Association and in 1925 was appointed Secretary of the Engineering Institute of Canada until his retirement in 1938.
Durley was also editor of the Engineering Institute of Canada's Engineering Journal between 1925 and 1938.