The New Forest is one of the largest remaining tracts of unenclosed pasture land, heathland and forest in Southern England, covering southwest Hampshire and southeast Wiltshire. It was proclaimed a royal forest by William the Conqueror, featuring in the Domesday Book.
Pre-existing rights of common pasture are still recognised today, being enforced by official verderers and agisters. In the 18th century, the New Forest became a source of timber for the Royal Navy. It remains a habitat for many rare birds and mammals.
It is a 28,924.5-hectare biological and geological Site of Special Scientific Interest. Several areas are Geological Conservation Review and Nature Conservation Review sites. It is a Special Area of Conservation, a Ramsar site and a Special Protection Area. Copythorne Common is managed by the Hampshire and Isle of Wight Wildlife Trust, Kingston Great Common is a national nature reserve and New Forest Northern Commons is managed by the National Trust.
The New Forest covers two parliamentary constituencies; New Forest East and New Forest West.