Boxley Warren is a 83-hectare (210-acre) Local Nature Reserve north of Maidstone in Kent.

It is privately owned and managed by Maidstone Borough Council.

[1][2] It is part of North Downs Woodlands Special Area of Conservation[3] and Wouldham to Detling Escarpment Site of Special Scientific Interest[4] This site is yew woodland with diverse fauna and flora.

It includes the White Horse Stone, a Neolithic standing stone which is a Scheduled Monument.

[1][5] There is access from the North Downs Way.