North Toronto Collegiate Institute (NTCI) is a semestered, public high school with over 1,200 students located in the North Toronto area of Toronto, Ontario, Canada. The school is operated and governed by the Toronto District School Board. From its founding in 1912 until 1998, it was overseen by the Toronto Board of Education.

The school is located in Midtown Toronto in the Yonge and Eglinton neighbourhood. The majority of students come from the surrounding Chaplin Estates, Lytton Park, Mount Pleasant, Davisville Village, Bayview Avenue, Moore Park, Lawrence Park, Broadway Avenue and St. Clair Avenue areas. All students have North Toronto CI as their home school. The closest TTC subway station is Eglinton station. The school's motto is Labor Omnia Vincit, which is Latin for 'Work conquers all'. North Toronto CI celebrated its 100th anniversary in May 2012.