- Pagham, Arun District, West Sussex
- Pallant House, Chichester, West Sussex
- Parham, Horsham District, West Sussex
- Partridge Green, Horsham District, West Sussex
- Patcham, The City of Brighton and Hove
- Patching, Arun District, West Sussex
- Peacehaven, Lewes District, East Sussex
- Peasmarsh, Rother District, East Sussex
- Penhurst, Rother District, East Sussex
- Petersfield, Hampshire
- Pett, Rother District, East Sussex
- Petworth House and Park, Petworth, West Sussex
- Petworth, Chichester District, West Sussex
- Pevensey, Wealden District, East Sussex
- Piddinghoe, Lewes District, East Sussex
- Piltdown, Wealden District, East Sussex
- Plaistow, Chichester District, West Sussex
- Playden, Rother District, East Sussex
- Plumpton, Lewes District, East Sussex
- Polegate, Wealden District, East Sussex
- Poling, Arun District, West Sussex
- Portfield, Chichester District, West Sussex
- Portslade, The City of Brighton and Hove
- Poynings, Mid Sussex District, West Sussex
- Preston/Preston Episcopi, The City of Brighton and Hove
- Pulborough, Horsham District, West Sussex
- Pyecombe, Mid Sussex District, West Sussex
