Lake of Two Mountains High School (LTM) is an Anglophone public high school in Deux-Montagnes, Quebec in the Laurentides region. It is a part of the Sir Wilfrid Laurier School Board.
The school's service area includes Deux Montagnes, Mirabel, Pointe-Calumet, St. Eustache, Ste-Marthe-sur-le-Lac, and St-Joseph-du-Lac. As of 2014 55 students from Kanesatake choose to attend Lake of Two Mountains.
The current campus was built in 1983, replacing the previous facility.
Coordinates: 45°32′28″N 73°54′49″W / 45.5411°N 73.9136°W