Joseph Boyd Martin (born October 20, 1938, in Bassano, Alberta) is a Canadian physician who is the Edward R. and Anne G. Lefler Professor Emeritus of Neurobiology at Harvard Medical School.
Martin's first faculty position was at McGill University, Montreal, Quebec, Canada, where he rose to become Chair of the Department of Neurology and Neurosurgery at the young age of 38, only five years following completion of his Ph.D.
He subsequently joined the faculty of Harvard Medical School, where he chaired the Department of Neurology at Massachusetts General Hospital, succeeding renowned neurologist Raymond Adams.
During his tenure at MGH, he also served as interim director of the hospital, where his administrative and leadership qualities led him to become on the short list for a number of high-ranking jobs.
He has also been elected a member of multiple medical and scientific societies including the Institute of Medicine of the National Academy of Sciences and is a past president of the American Neurological Association.
On December 29, 2017, Martin was appointed an officer of the Order of Canada, for "his sustained and influential leadership in academic medicine, and for his contributions to building health research institutions in North America."