Earl Haig Secondary School, formerly Earl Haig Collegiate Institute, is a public high school with 2,048 students in Toronto, Ontario, Canada. In addition to being a public secondary school, the school is also host to the Claude Watson Arts Program, an auditioned arts program integrated into the secondary school curriculum.

Opened in 1929 by the North York Board of Education, the school is named after Field Marshal The 1st Earl Haig, who was commander of the British Expeditionary Force during the majority of the First World War. The school was established in 1928, shortly after Earl Haig's death.