Longcross is a village in the Borough of Runnymede in Surrey, England, approximately 34.6 kilometres (21.5 mi) southwest of central London. Its name is thought to come from a marker, placed where the parish boundaries of Chertsey, Chobham and Egham met. From the start of the second world war, Longcross was home to a Ministry of Defence facility, where armoured vehicles were designed and tested. The site was subsequently sold to QinetiQ and is now Longcross Film Studios.