Mélissa Désormeaux-Poulin nasceu o 3 de julho de 1981 em Montreal, Québec, Canadá. É atriz e autora, conhecida pelo seu trabalho em Incêndios (2010), Gabrielle (2013) e Omertà (2012).
Mélissa Désormeaux-Poulin was born to a family unconnected with the dramatic arts: her mother is a director of communications and her father is a teacher. She studied at an arts school at Lanaudière.