Gordon Richard Slemon, OC (August 15, 1924 – September 26, 2011) was a Canadian electrical engineer and professor. Born in Bowmanville, Ontario, he received a B.A.Sc. in electrical engineering in 1946 and a M.A.Sc. in electrical engineering in 1948 from the University of Toronto. He received a Ph.D. from the University of London in 1952. He is the co-author of Scientific Basis of Electrical Engineering (1961), Electric Machinery (1979), and Power Semiconductor Drives (1984). He is the author of Magnetoelectric Devices (1966) and Electric Machines and Drives (1992).