Wraysbury is a village and civil parish in the Royal Borough of Windsor and Maidenhead in England. It is under the western approach path of London Heathrow Airport. It is located on the east bank of the River Thames, roughly midway between Windsor and Staines-upon-Thames, and 18 miles (29 km) west by south-west of London. Historically part of Buckinghamshire, Wraysbury was made part of the new non-metropolitan county of Berkshire in 1974, under the Local Government Act 1972. The Wraysbury Reservoir is located to the east, administratively wholly in the Spelthorne district of Surrey, although it was historically divided between Buckinghamshire and Middlesex.