Shirley Lavinia Thomson, CC OOnt (née Cull; February 19, 1930 – August 10, 2010) was a Canadian civil servant. Born in Walkerville, Ontario, she received a B.A. degree in history in 1952 from the University of Western Ontario. In 1974, she received a M.A. degree in art history from the University of Maryland, College Park. In 1981, she received a Ph.D. degree in art history from McGill University.