| reward | premio |
| rewarding | appagante |
| rewind | riavvolgere |
| Rewind crank | Manovella per il riavvolgimento |
| reword | esprimere con altre parole |
| rewrite | riscrivere |
| Rex | REX |
| Rex Sacrorum | Rex Sacrorum |
| Rex Stout | Rex Stout |
| Rexhep Meidani | Rexhep Meidani |
| Rexism | Rexismo |
| Rey Commission | Commissione Hallstein I |
| Reykjahlíð | Reykjahlid |
| Reykjanes | Reykjanes |
| Reykjanesbær | Reykjanesbær |
| Reykjavik | Reykjavik |
| Reykjavík | Reykjavík |
| Reynard | Renart |
| Reynold | Rinaldo |
| Reynolds number | Numero di Reynolds |
| Reza Abbasi | Reza Abbasi |
| Reza Shah | Reza Pahlavi |
| Rezina | Gomma |
| Rešov | Rešov |
| RF | RF |
| RFS Vladimir Monomakh | Vladimir II di Kiev |
| RFS Yury Dolgoruky | Jurij Dolgorukij di Kiev |
| RG | RG |
| RG Veda | RG Veda |
| RGB color model | RGB |
| RGB color space | RGB |
| Rh | Rodio |
| Rh factor | Fattore Rh |
| Rhabdodontidae | Rhabdodontidae |
| Rhadamanthus | Radamanto |
| Rhaetia | Raetia |
| Rhaetian Alps | Alpi Retiche |
| Rhaetian languages | Lingua ladina |
| Rhaeto-Romance | Lingua romancia |
| Rhaeto-Romance languages | Lingua ladina |
| rhagade | ragade |
| rhamnose | ramnosio |
| Rhamphorhynchus | Rhamphorhynchus |
| Rhaphigaster nebulosa | Rhaphigaster nebulosa |
| Rhapsode | Rapsodo |
| rhapsodic | rapsodico |
| Rhapsodist | Rapsodo |
| rhapsody | rapsodia |
| Rhapsody in August | Rapsodia in agosto |
| Rhapsody in Blue | Rapsodia in blu |
| Rhapsody of Fire | Rhapsody of Fire |
| RhB | Ferrovia retica |
| rhea | nandù |
| Rhea Silvia | Rea Silvia |
| Rheged | Regno di Rheged |
| Rheidae | Rheae |
| Rheims | Reims |
| Rhein | Reno |
| Rhein-Erft-Kreis | Rhein-Erft-Kreis |
| Rhein-Kreis Neuss | Neuss |
| Rhein-Neckar-Kreis | Rhein-Neckar-Kreis |
| Rheinau | Rheinau |
| Rheinbach | Rainbach im Mühlkreis |
| Rheineck | Rheineck |
| RheinEnergieStadion | RheinEnergieStadion |
| Rheinfelden | Rheinfelden |
| Rheingau wine | Rheingau |
| Rheingau-Taunus-Kreis | Rheingau-Taunus-Kreis |
| Rheingold Express | Rheingold Express |
| Rheinhausen | Rheinhausen |
| Rheinhessen | Rheinhessen |
| Rheinisch-Bergischer Kreis | Rheinisch-Bergischer Kreis |
| Rheinmünster | Rheinmünster |
| Rheinpark Stadion | Rheinpark Stadion |
| Rheinsberg | Reinsberg |
| Rheinstetten | Rheinstetten |
| Rheintal | Distretto di Rheintal |
| Rhen - the | Reno |
| Rhenish | renano |
| Rhenish Hesse | Rheinhessen |
| rhenium | renio |
| rheology | reologia |
| rheophore | reoforo |
| rheostat | reostato |
| rhesus factor | Fattore Rh |
| rhetoric | eloquenza |
| rhetorical | retorico |
| rheumatic | reumatico |
| rheumatic fever | febbre reumatica |
| rheumatism | reumatismo |
