Clear Brook is an unincorporated farming community in northern Frederick County, Virginia. The community lies approximately six miles (9.6 kilometers) north of the county seat of Winchester along Martinsburg Pike (U.S. Route 11). It is the site of the Kenilworth home, once owned by Harry K. Thaw, the old Hopewell Meeting House, Stonewall Elementary School, the Clearbrook Park, and the Frederick County Fairgrounds. Sometimes referred to as Clearbrook, its name was decided upon by the Board on Geographic Names in 1966 as Clear Brook.