York Mills Collegiate Institute is a Toronto high school, offering grades 10–12, located in North York along York Mills Road between Leslie Street and Bayview Avenue. The school emphasizes university preparation. English and French Immersion courses are provided from grades 9 to 12. Windfields Middle School and St. Andrews Middle School are the two feeder middle schools that make up the majority of York Mills' population. Additionally, Don Valley Middle School was a feeder school to York Mills until its conversion from a junior high (grades 7 to 9) to a middle school (grades 7 to 8) in 2016.