Burnham Beeches is a 374.6-hectare (926-acre) biological Site of Special Scientific Interest situated west of Farnham Common in the village of Burnham, Buckinghamshire. The southern half is owned by the Corporation of London and is open to the public. It is also a National Nature Reserve and a Special Area of Conservation.

Burnham is a large village and civil parish that lies north of the River Thames in Buckinghamshire, between the towns of Maidenhead and Slough, about 24 miles west of Charing Cross, London. It is probably best known for the nearby Burnham Beeches woodland.