Herndon High School is a fully accredited four-year public high school in Herndon, Virginia, United States. Herndon serves grades 9-12 and is a part of the Fairfax County Public Schools (FCPS) system. Herndon High School serves the town of Herndon and the northern part of the unincorporated community of Reston. Herndon's mascot is the Fighting Hornet and school colors are red, black and white.