| Reda Mansour | Reda Mansour |
| Redange | Redange |
| Redbridge | London Borough of Redbridge |
| Redditch | Redditch |
| reddition | surrender |
| Rede Globo de Televisão | Globo Network |
| Redemptor Hominis | Redemptor Hominis |
| Redemptoris Missio | Redemptoris Missio |
| redescendre | go down again |
| redessiner | redraw |
| redevable | thankful |
| redevance | royalty |
| redevenir | become again |
| redevenir droit | straighten |
| redevenir malade | relapse |
| Redgrave | Redgrave |
| Redha Takar | Redha Tukar |
| Redha Tukar Fallatah | Redha Tukar |
| rediffuser | rerun |
| rediffusion | repeat |
| redimensionner | resize |
| redingote | frock coat |
| redire | repeat |
| Redirection de ports | Port forwarding |
| redistribuer | redistribute |
| redistribution | redistribution |
| Redistribution de fluorescence après photoblanchiment | Fluorescence recovery after photobleaching |
| Redistribution des revenus | Income redistribution |
| Redistribution des richesses | Property redistribution |
| Redisu | Josei |
| Rednitz | Rednitz |
| Rednitzhembach | Redwitz an der Rodach |
| Redonner confiance | Restore hope |
| redonner de la vitalité à | revitalize |
| redoubler | stay down |
| Redoubler de prudence | To be extra careful |
| redoutable | horrible |
| redoute | redoubt |
| redouter | frighten |
| Redoux | Spell of milder weather |
| Redowa | Redowa |
| redressement | rebound |
| redressement assis | sit-up |
| redresser | put right |
| Redresser la situation | Stop the rot |
| Redresser un dérapage | Get out of a skid |
| Redresser un jugement | Make use |
| redresseur | rectifier |
| Redridge | Redridge |
| Reds de Cincinnati | Cincinnati Reds |
| Redskin | Red-Skinhead |
| Redskins de Washington | Washington Redskins |
| Reduced instruction set computer | Reduced instruction set computer |
| Reduced instruction set of a computer | Reduced instruction set computer |
| Reducteur focal | Focal reducers |
| Reductio ad hitlerum | Reductio ad Hitlerum |
| Redunca | Reedbuck |
| Redunca arundinum | Southern Reedbuck |
| Redunca fulvorufula | Mountain Reedbuck |
| Redunca redunca | Bohor Reedbuck |
| Reduncinae | Reduncinae |
| Reduviidae | Reduviidae |
| Redwall | Redwall |
| Redwick | Redwick |
| Redwitz an der Rodach | Regensburg |
| redéclarer | restate |
| redécoupage | rezoning |
| redécouper | rezone |
| redécouvrir | rediscover |
| redémarrer | restart |
| redéployer | redeploy |
| Reedsport | Reedsport |
| Reefer Madness | Reefer Madness |
| Rees | Rees |
| Reese Hoffa | Reese Hoffa |
| Reese Witherspoon | Reese Witherspoon |
| Refactorisation | Code refactoring |
| refaire | remake |
| Refaire entièrement | Do all over |
