- Piłsudski, Józef1
- Poland1
- Pollack, Martin1
- Polsby, Nelson W.1
- Popiełuszko, Jerzy1
- Posen, Barry1
- Prokhorov, Boris1
- Pye, Lucian W.1
- Raeff, Marc1
- Ramet, Pedro1
- Ratushinskaia, Irina1
- Ravalico, Domenico E.1
- Rees, Philip1
- Reznikov, Mark1
- Richard, Jan1
- Ripp, Victor1
- Ritch, John B.1
- Romano-Petrova, N.1
- Rositzke, Harry August1
- Roth, Paul1