Marie-Josée Fortin FRSC (born October 21, 1958) is an ecologist and Professor in the Department of Ecology and Evolutionary Biology at the University of Toronto.

[5] Fortin completed her BSc in biological sciences (1983) and her MSc in numerical ecology (1986) at the Université de Montréal, where she conducted research under Pierre Legendre.

[6] These subjects include disciplines such as spatially-explicit modeling, spatial epidemiology, forest ecology, network theory, landscape genetics and geography.

[7] This research focuses on the maintenance of biodiversity within ecosystems and appropriate conservation strategies for species affected by land use and climate change.

[7] Since 1987, Fortin has contributed to a large number of publications in books as well as scientific journals involving ecology and conservation.