| ready-to-wear | prêt-à-porter |
| ReadyBoost | ReadyBoost |
| Reagan Doctrine | Doktryna Reagana |
| Reaganomics | reaganomika |
| reagent | reagent |
| real | istotny |
| Real Aikido | Real aikido |
| Real Arroyo Seco | Real Arroyo Seco |
| Real Betis | Betis Sewilla |
| Real Cartagena | Real Cartagena |
| Real closed field | Ciało rzeczywiste |
| Real estate investment trust | Real Estate Investment Trust |
| Real Madrid Baloncesto | Real Madryt |
| Real Madrid Castilla | Real Madryt Castilla |
| Real mode | Tryb rzeczywisty |
| Real Murcia | Real Murcia |
| Real number | Liczby rzeczywiste |
| Real Oviedo | Real Oviedo |
| Real Politics Union | Unia Polityki Realnej |
| Real socialism | Realny socjalizm |
| Real Sociedad | Real Sociedad San Sebastián |
| Real time control protocol | Real Time Control Protocol |
| Real Time Kinematic | RTK |
| Real Time Strategy | Strategiczna gra czasu rzeczywistego |
| Real Time Streaming Protocol | Real Time Streaming Protocol |
| Real union | Unia realna |
| Real Unión | Real Unión Irún |
| Real Valladolid | Real Valladolid |
| Real Zaragoza | Real Saragossa |
| Real-time computing | System czasu rzeczywistego |
| Real-time operating system | System operacyjny czasu rzeczywistego |
| Real-time polymerase chain reaction | Real time PCR |
| Real-time strategy | Strategiczna gra czasu rzeczywistego |
| Real-time Transport Protocol | Real-time Transport Protocol |
| Realistic politics | Realpolitik |
| realistically | realistycznie |
| reality | rzeczywistość |
| Reality Pump Studios | Reality Pump Studios |
| Reality television | Reality show |
| realization | świadomość |
| realize | myśleć |
| really | naprawdę |
| RealNetworks | RealNetworks |
| RealPlayer | RealPlayer |
