Peeblesshire Scottish County
 
Pembroke Boroughs Borough within Pembrokeshire
 
Pembrokeshire Welsh County
 
Penryn Borough within Cornwall
 
Perth Burghs Scottish burgh
 
Perthshire Scottish County
 
Peterborough Borough within Northamptonshire
 
Petersfield Borough within Hampshire
 
Plymouth Borough within Devon
 
Plympton Erle Borough within Devon
 
Pontefract Borough within Yorkshire
 
Poole Borough within Dorset
 
Portsmouth Borough within Hampshire
 
Preston Bor