Martingrove Collegiate Institute is a semestered public secondary school in the Etobicoke district of Toronto, Ontario, Canada.

Martingrove is currently one of two TDSB designated high schools for the Gifted Program in Etobicoke (the other being Thistletown Collegiate Institute).

[8] The event draws on hundreds of students across the Toronto District School Board, as well as notable guest speakers such as Bob Rae (former Ontario Premier), Allan Rock (former Justice Minister), Jean Chrétien (former Canadian Prime Minister), and Elizabeth Dowdeswell (current Lieutenant Governor of Ontario).

[citation needed] Previously (in the late 1980s and early 90s), the newspaper was called The Bear Facts, so named after the school's mascot.

Martingrove's Auditorium Facilities Crew (AFC) is a student-run organization that takes care of the school's stage productions, assemblies, and shows, as well as third party permits.