- Pabst, Georg Wilhelm1
- Pankowski, Marian1
- Piddington, William Ernest Reginald1
- Polish Unit of RFE/RL Research Institute; RFE/RL RI1
- Pool, Ithiel de Sola1
- Postgate, Raymond1
- Pritzkoleit, Kurt1
- Prokovʹev, Vasiliĭ Ivanovich. [from old catalog]1
- Rahner, Karl1
- Rebreanu, Liviu1
- Reinhardt, George C.1
- Reischauer, Edwin O.1
- Resnais, Alain1
- Ripley, Josephine1
- Romanian Unit1
- Salisbury, Harrison E.1
- Sallai, Elemér1
- Samizdat Archives of Radio Free Europe1
- Sarkisyanz, Emanuel1
- Schapiro, Leonard1