James Fraser Mustard (October 16, 1927 – November 16, 2011) was a Canadian doctor and renowned researcher in early childhood development. Born, raised and educated in Toronto, Ontario, Mustard began his career as a research fellow at the University of Toronto where he studied the effects of blood lipids, their relation to heart disease and how Aspirin could mitigate those effects. He published the first clinical trial showing that aspirin could prevent heart attacks and strokes. In 1966, he was one of the founding faculty members at McMaster University's newly established medical school. He was the Dean of the Faculty of Health Sciences and the medical school at McMaster University from 1972–1982. In 1982, he helped found the Canadian Institute for Advanced Research and served as its founding president, serving until 1996. He wrote several papers and studies on early childhood development, including a report used by the Ontario Government that helped create a province-wide full-day kindergarten program. He won many awards including being made a companion of the Order of Canada – the order's highest level – and was inducted into the Canadian Medical Hall of Fame. He died November 16, 2011.