- Paget, Lord (Reg) 1
- Paine, Tom 1
- Pankhurst, Mrs Emmeline 1
- Pannell, Charlie 1
- Parliamentary Labour Party, see Labour Party
- Parry, Gordon 1, 2, 3
- Part, Antony 1, 2
- Peacock report (1970) 1
- Penkridge 1
- Perry, Walter 1, 2, 3, 4, 5, 6, 7
- Peter Stuyvesant tobacco company 1
- Phillips, Morgan 1, 2
- Phillips, Marion 1, 2, 3
- Phillips, Melanie 1, 2
- Picasso, Pablo 1
- Picton-Turberville, Edith 1, 2
- Pilgrim Trust 1
- Pilkington committee on broadcasting (1962) 1, 2, 3, 4
- Pimlott, Ben 1, 2
- Piper, John 1
- Plebs League 1
- Plummer, Desmond 1
- Political and Economic Planning Group 1
- Pollitt, Harry 1, 2
- polytechnics 1, 2, 3
- Pope-Hennessy, Sir John 1, 2
- Popular Front 1, 2, 3
- Portsmouth N. by-election (1943) 1
- Post Office 1
- Powell, Enoch 1, 2
- Prentice, Reg 1
- prescription charges 1, 2, 3, 4
- Price, Christopher 1, 2
- Priestley, J. B. 1, 2, 3, 4, 5, 6, 7
- Pritt, D. N. 1
- Private Eye 1
- private secretaries (civil service) 1
- Public Accounts Committee 1
- public lending right 1
- public libraries 1, 2, 3