Nathalie Des Rosiers CM OOnt (born 1959) is a lawyer, academic and former politician in Ontario, Canada. She is the 6th and current Principal of Massey College at the University of Toronto. She was a Liberal member of the Legislative Assembly of Ontario representing the riding of Ottawa—Vanier from 2016 to 2019. During her tenure as a Member of Provincial Parliament, Des Rosiers served in the cabinet of Kathleen Wynne as Minister of Natural Resources and Forestry.