Naphhill Common is a 71.1-hectare (176-acre) Site of Special Scientific Interest in Naphill in Buckinghamshire.

[1][2][3] This oak and beech wood is thought to be the most natural of all the Chilterns woodlands.

It has diverse trees and shrubs, areas of acid heath, wet rides and ponds.

Many of the oaks and beech trees are ancient pollards, and they provide an important habitat for invertebrates and lichens.

Heathland clearings have some species which are uncommon in the county, such as heath bedstraw and the heather Calluna vulgaris.