- Pinnyor
- Pintotte's Lane, Newgate Street
- The Pipe Yard
- Pipemakers' Alley
- Piscaria
- Pissing Alley
- Pitcher's Court
- Planners' Court
- Plasterers' Hall
- Play House Yard
- The Playhouse
- Playhouse Yard
- Pleydell Court
- Pleydell Street
- Plimton's Court
- The Plough
- Plough Alley
- Plough Alley, Barbican
- Plough Court
- Plough Place
- Plough Yard
- Plough Yard, Bevis Marks
- Plough Yard, Lombard Street
- Plow Alley, Barbican
- Plow Court, Lombard Street
- Plow Yard, Bevis Marks
- Plow Yard, Duke's Place
- Plow Yard, Fetter Lane
- Plowden's Buildings, Chambers
- Plumb Tree Court
- Plumbers' Hall
- Plumptre Court
- Plumtree Court
- Plympton Court
- Podyng Lane
- Ponder's Court
- Pontacks
- Pool by St. Giles' Churchyard
- Poor Jewry
- Poor Jewry Lane
- Poore Widowe's Alley
- Popcurtleslane
- Pope Lane End
- Pope's Alley
- Pope's Cottages
- Pope's Head Alley
- Pope's Head Alley, Cornhill
- Pope's Head Court
- Pope's Lane
- Pope's Yard, Minories
- Popinjay
- Popinjay, Popynjay Aley
- Popping's Alley
- Poppin's Court
- Popys Alley
- Porridge Pot Alley
- Port of London Authority's Warehouses
- Le Portehawe
- Porters
- Porter's Court
- Porter's Quay
- Porter's Yard
- Porteslane
- Portpool
- Portpool Lane
- Portpool Street
- Portpulbrigg
- Portsoken
- Portsoken Ward
- Post House
- Post Office Court
- Post Office, Lombard Street
- Postboy Passage
- Postern
- Postern Passage
- Postern Row
- Postern, near Moorfields
- Postern, Postern Gate
- The Posterne
- Le Posteryn
- Pott Inn, Pott on the Hoop
- Pottage Pot Alley
- Potters
- Potters' Alley, Court
- Potter's Key
- Pottes Alley
- Pottlepot Alley
- (St.) Poulcher's
- Poules Gate
- Pouleshede
- Poulterers
- Poulterers' Hall
- Poultney Lane
- Poulton's Court
- Poultry
- Poultry Alley
- Poultry Chapel
- Poultry Compter
- Poultry Compter Yard
- Pound Yard