Montcalm Secondary School is a comprehensive "Technology Emphasis" secondary school located in northeast London, Ontario, Canada.

The school moved into its present building in September 1969.

Renovations late in the 1990s-early 2000s updated the range of technical subjects; lockers were relocated along corridor walls and the former locker bays were converted into additional class and specialty function space.

Montcalm offers a variety of courses for students at various levels.

Locally developed courses are offered in grade 11 and 12.