Palatine Community Consolidated School District 15, often initialized CCSD15, is a school district in the suburbs of Chicago, Illinois with its headquarters in the Joseph M. Kiszka Educational Service Center in Palatine. It is the second-largest elementary-only school district and 19th-largest in Illinois by student enrollment. It serves all or portions of Palatine, Rolling Meadows, Hoffman Estates, Arlington Heights, Inverness, Schaumburg, and South Barrington.

Palatine is a village in Cook County, Illinois, United States. It is a northwestern residential suburb of Chicago. As of the 2020 census, it had a population of 67,908. As of the 2010 Census, it was the seventh-largest community in Cook County and the 18th-largest in Illinois.