Thomas John "Jock" Murray OC ONS (born May 1938) is a Canadian neurologist, medical historian and author. Following his neurology training, Murray joined the faculty of medicine at Dalhousie in 1970. He was the founding director of the Dalhousie Multiple Sclerosis Research Unit, co-founder of the Consortium of North American Multiple Sclerosis Centres, chair of the , president of the and of the Association of Canadian Medical Colleges, vice-president of the American Academy of Neurology, chair of the board of governors and chair of the board of regents for the American College of Physicians, and served as dean of Medicine at Dalhousie.