Collège Jean de la Mennais is a French private mixed secondary school on the South Shore of Montreal, Québec, Canada at 870 Chemin de Saint-Jean in the municipality of La Prairie. As of 2007, the school had about 1750 elementary and high school students. Collège Jean de la Mennais was once directed by religious brothers, although today it is directed by a secular administration. The faculty is mixed between secular and religious personnel. On the school grounds there is a private cemetery which holds the graves of brothers connected to the school.