- Pepper, Roy1
- Pléh, Csaba1
- Popescu, Adrian1
- Ra'ad, Walid1
- Rapp, Irina1
- Rault, Alexis1
- Raush, Petr Aleksandrovich1
- Rogowicz, Stefan Roch1
- Roh, Tae Woo1
- Rohrlich, Ruby1
- Roos-Collins, Richard1
- Rooz, Zoltán1
- Ross, Cameron1
- Ross, Herbert1
- Ross, Ian Simpson1
- Ross, Nikolai1
- Ross, Thomas B.1
- Rott, Viktor1
- Rău, Aurel1
- Sakharov, Andrei1