Malvern Collegiate Institute is a Toronto high school that was founded in 1903 as "East Toronto High School", in what was then the village of East Toronto. When the village was annexed by Toronto in 1908, the name of the street the school was located on was changed from Charles Street to Malvern Avenue, and the name of the institution was changed shortly thereafter.
Malvern Collegiate is located in an upper-middle class neighbourhood known as The Beaches. Notable alumni include Glenn Gould, Robert Fulford, and Don Getty who were all at the school at the same time in the 1950s. Norman Jewison, Alex Trebek, Kiefer Sutherland, Keanu Reeves, Bruce Kidd, Teresa Stratas and Jack Kent Cooke also attended the school.
Malvern celebrated its centennial in 2003. In 2006, Toronto Life magazine stated that Malvern CI had the best English program in Toronto, a notable change from the 1980s, when the same magazine rated Malvern's English department as being in the bottom five of all Toronto collegiates. The school's mascot is the Black Knight, and the school colours are red and black.