Croxley Common Moor is a 39.5-hectare (98-acre) biological Site of Special Scientific Interest (SSSI) and Local Nature Reserve in Croxley Green, Hertfordshire.

It is owned by Three Rivers District Council and managed by the council together with the Countryside Management Service and the Friends of Croxley Common Moor.

[2] The site is mainly grass heathland with some ancient woodland and hazel coppice.

It has been designated an SSSI for its botanical interest, and over 250 species of plants have been recorded.

[2][3] The moor can be accessed from the Ebury Way, a foot/cycle route which borders it to the south, and by a footbridge across the River Gade, which borders it to the north, from Mill Lane, close to Croxley tube station.