National nature reserves in Cambridgeshire

National nature reserves in Cambridgeshire, England are established by Natural England and managed by them or by non-governmental organisations such as the Royal Society for the Protection of Birds or the National Trust.

List of reserves
A list of national nature reserves in Cambridge:
 * Barnack Hills & Holes NNR, 22 ha near Stamford
 * Bedford Purlieus NNR, 208 ha near Kings Cliffe
 * Castor Hanglands NNR, 90 ha near Peterborough
 * Chippenham Fen NNR, 117 ha near Newmarket
 * Holme Fen NNR, 266 ha near Ramsey
 * Monks Wood NNR, 157 ha near Sawtry
 * Upwood Meadows NNR, 6 ha near Ramsey
 * Wicken Fen NNR, 255 ha near Soham
 * Woodwalton Fen NNR, 208 ha near Ramsey