William Rainey Harper High School was a public 4–year high school located in the West Englewood neighborhood on the south side of Chicago, Illinois, United States. Opened in 1911, Harper was part of the Chicago Public Schools district. Harper served students in West Englewood and certain streets of Chicago Lawn, and was noted as the oldest high school in the West Englewood neighborhood. Harper closed at the end of the 2020–2021 school year on June 30, 2021.