The Fairfax County Public Schools system (FCPS) is a school division in the U.S. commonwealth of Virginia. It is a branch of the Fairfax County government which administers public schools in Fairfax County and the City of Fairfax. FCPS's headquarters is located in the Gatehouse Administration Center in Merrifield, an unincorporated section of the county near the city of Falls Church; the headquarters has a Falls Church address but is not within the city limits.

Fairfax County, officially the County of Fairfax, is a county in the Commonwealth of Virginia. With a population of 1,150,309 as of the 2020 census, it the most populous county in Virginia, the most populous jurisdiction in the Washington metropolitan area, and the most populous location in the Washington–Baltimore combined statistical area. The county seat is Fairfax; however, because it is an independent city under Virginia law, the city of Fairfax is not part of the county.