Hannah Wunsch is a Professor of Anesthesiology and Critical Care Medicine at the University of Toronto and a practicing intensivist at Sunnybrook Hospital.

Born in Boston and raised in Cambridge, Massachusetts, Hannah attended Harvard College, graduating with a BA in Biology. She attended Washington University School of Medicine and received a Master's Degree in Epidemiology from the London School of Hygiene & Tropical Medicine. She completed an anesthesia residency and critical care fellowship at Columbia University and spent 6 years on faculty in the Department of Anesthesiology at Columbia before moving to Toronto.

Hannah holds a Canada Research Chair in Critical Care Organization and Outcomes, as well as CIHR and NIH funding for research in pharmacoepidemiology of critical illness. She is the medical director of the Cardiovascular ICU at Sunnybrook Hospital and the Associate Research Director for the Interdepartmental Division of Critical Care Medicine at the University of Toronto. She is currently at work on a book about polio and mechanical ventilation.

Hannah is a bibliophile, theater lover, tennis player, and an avid (but terrible) ice hockey player. She lives in the Annex in Toronto, Ontario and the village of Woods Hole on Cape Cod, Massachusetts