| Radiogalax | Radiogalaxia |
| Radiohead | Radiohead |
| Radioisotopgenerator | Generador termoeléctrico de radioisótopos |
| radiokativ soptipp | vertidos radiactivos |
| Radiolarier | Radiolaria |
| radiologi | radiología |
| Radiometer | Radiómetro |
| Radiometrisk datering | Datación radiométrica |
| radionuklid | radionúclido |
| radioprogram | programa de radio |
| Radiosond | Radiosonda |
| radiotelegram | radiograma |
| Radioteleskop | Radiotelescopio |
| Radiotelevisione Italiana | RAI |
| Radiovågor | Onda de radio |
| Radisa | Daikon |
| radium | radio |
| RADIUS | RADIUS |
| Radom | Radom |
| radon | radón |
| Radosław Sikorski | Radosław Sikorski |
| Radovan Karadžić | Radovan Karadžić |
| Raducz | Raducz |
| Radula | Rádula |
| Raekwon | Raekwon |
| RAF | RAF |
| Rafael | Arcángel Rafael |
| Rafael Alberti | Rafael Alberti |
| Rafael Benítez | Rafael Benítez |
| Rafael Correa | Rafael Correa |
| Rafael Guízar Valencia | Rafael Guízar y Valencia |
| Rafael Merry del Val y Zulueta | Rafael Merry del Val |
| Rafael Márquez | Rafael Márquez |
| Rafael Nadal | Rafael Nadal |
| Rafael Osuna | Rafael Osuna |
| Rafael Paasio | Rafael Paasio |
| Rafael Sabatini | Rafael Sabatini |
| Rafael Trujillo | Rafael Leónidas Trujillo |
| Rafael van der Vaart | Rafael van der Vaart |
| Raffaello Sanzio | Rafael Sanzio |
| raffinaderi | refinería |
| raffinemang | refinamiento |
| raffinera | defecar |
| raffinerad | astuto |
| raffinering | refino |
| Rafflesia | Rafflesia |
| Rafi Eitan | Rafael Eitan |
| Rafiq Hariri | Rafik Hariri |
| rafsa ihop | escribir deprisa |
| Ragdoll | Ragdoll |
| Rage | Rage |
| Rage Against the Machine | Rage Against the Machine |
| Raggare | Rockero |
| raggig | desgreñado |
| raggla | titubear |
| ragla | tambalearse |
| Ragnar | Rainiero de Montferrato |
| Ragnar Anton Kittil Frisch | Ragnar Frisch |
| Ragnar Granit | Ragnar Granit |
| Ragnar Lodbrok | Ragnar Lodbrok |
| Ragnarok Online | Ragnarok Online |
| Ragnarok the Animation | Ragnarok The Animation |
| Ragnarök | Ragnarök |
| Ragnvald Knaphövde | Ragnvald Knaphövde |
