Glebe Collegiate Institute is a high school in the Glebe neighbourhood of Ottawa, Ontario, Canada. Administered by the Ottawa-Carleton District School Board, Glebe Collegiate Institute has approximately 1,700 students. Glebe is the district's largest school. Students and sports teams are referred to as "Gryphons". The Gryphons' performance has led to Glebe Collegiate Institute being consistently ranked one of the premier athletics schools in Canada.