P
- Padholme Pumping Station: TL221982
- Padney Fen: TL545738
- Pampisford: TL498480
- Pampisford (Home Farm): TL505486
- Papley Gorse: TL120910
- Papworth Everard Wood: TL292628
- Papworth St. Agnes: TL268645
- Paradise NR: TL447572
- Parson Drove: TF370085
- Paxton Pits: TL202640
- Peakirk: TF170070
- Perry West Wood: TL135665
- Peterborough (Millennium Bridge): TL236982
- Pickmore Wood: TL652581
- Pidley: TL333777
- Pidley (Rookery Farm): TL340806
- Pidley (Wilobe Farm): TL335788
- Pilsgate: TF065056
- Pingle Wood: TL313815
- Plantation Farm (Shippea Hill) - See Redmere
- Pocket Park, St Neots - See Barford Pocket Park
- Pondersbridge: TL262923
- Portholme Meadow: TL235705
- Prickwillow: TL596824
- Prickwillow (Engine Farm): TL624830
- Prior's Fen GP: TF260005
- Prior's Fen (Willow Hall Lane) - See Willow Hall Lane
- Priory Park: TL193612
- Purls Bridge: TL478870
- Pymoor: TL498864