- Popescu-Puțuri, Ion1
- Popović, Milentije1
- Porshnev, B. F.1
- Pye, Lucian W.1
- Raeff, Marc1
- Rapoport, Anatol1
- Rauti, Pino1
- Reed, John1
- Rigby, T. H.1
- Romanian Unit1
- Rothschild, Joseph1
- Rubinstein, Alvin Z.1
- Rue, John E.1
- Rupen, Robert Arthur1
- Ryan, Cornelius1
- Révai, József1
- Róna, Tibor1
- Saakov, Rafael Rubenovich1
- Salvemini, Gaetano1
- Samuel, Maurice1