Windlesham is a village in the Surrey Heath borough of Surrey, England, approximately 25 miles (40 km) south west of central London. Its name derives from the Windle Brook, which runs south of the village into Chobham, and the common suffix ‘ham’, the Old English word for ‘homestead’. The civil parish of Windlesham has a population of 17,000 and includes the neighbouring villages of Bagshot and Lightwater.
Windlesham Arboretum, which covers an area of approximately 1 km2 (0.39 sq mi), is on the south side of the M3 motorway. Access to the motorway is via junction 3 and the nearest railway station is at Bagshot.