Marc Lépine (; October 26, 1964 – December 6, 1989) was a 25-year-old Canadian man from Montreal, Quebec, who in 1989 murdered 14 women, and wounded 10 women and four men at the École Polytechnique, an engineering school affiliated with the Université de Montréal, in the École Polytechnique massacre, also known as the "Montreal Massacre".