Butser Hill is a hill and nature reserve in Hampshire, England. South-west of Petersfield, it is a 239.7-hectare (592-acre) biological and geological Site of Special Scientific Interest. It is a national nature reserve and a Special Area of Conservation. Part of it is a Geological Conservation Review site and an area of 84.8 hectares is Oxenbourne Down, which is designated a Local Nature Reserve. Part of it is a Scheduled Monument.

Hampshire is a ceremonial county in South East England. It is bordered by Berkshire to the north, Surrey and West Sussex to the east, the Isle of Wight across the Solent to the south, Dorset to the west, and Wiltshire to the north-west. The cities of Portsmouth and Southampton are the largest settlements and the county town is the city of Winchester.