| Regen | Regn |
| Regen River | Regn |
| regeneration | regenerering |
| Regenerative circuit | Superregenerativ modtager |
| Regensburg | Regensburg |
| Regent | Regent |
| Regent Diamond | Regent |
| Reggae | Reggae |
| Reggie Fils-Aime | Reginald Fils-Aime |
| Reggio Calabria | Reggio di Calabria |
| Regia Aeronautica | Règia Aeronautica |
| Regierungsbezirk | Regierungsbezirk |
| Regiment | Regiment |
| Regin | Regin |
| Regina | Regina |
| Regina Spektor | Regina Spektor |
| Reginald Arvizu | Reginald Arvizu |
| region | region |
| Region Hovedstaden | Region Hovedstaden |
| Region Midtjylland | Region Midtjylland |
| Region Nordjylland | Region Nordjylland |
| Region of Murcia | Murcia |
| Region of Republican Subordination | Dusjanbe |
| Region Sjælland | Region Sjælland |
| Region Syddanmark | Region Syddanmark |
| regional authority | delstatsmyndighed |
| regional convention | regional konvention |
| regional development | egnsudvikling |
| Regional Internet registry | Regional Internet Registry |
| regional law | regional lov |
| regional legislation | delstatslov |
| regional natural park | regional naturpark |
| regional plan | regionplan |
| regional planning | egnsplanlægning |
| regional regulation | regional forordning |
| regional statistics | regional statistik |
| regional structure | regional struktur |
| Regions and districts of Scotland | Skotlands kommuner |
| Regions of Denmark | Danmarks regioner |
| Regions of England | Region |
| Regions of Finland | Finlands landskaber |
| Regions of France | Franske regioner |
| Regions of Japan | Region |
| Regions of Mauritania | Mauretanien |
| Regions of Norway | Norges landsdele |
| Regions of the Czech Republic | Herredet |
| register | anbefale |
| registered letter | befalet brev |
| Registered partnership | Registreret partnerskab |
| registered site | registreret anlægsområde |
| registration | registrering |
| registration obligation | registreringspligt |
| registration proceeding | registreringsprocedure |
| Regnitz | Regnitz |
| Regression testing | Regressionsanalyse |
| regret | beklage |
| regular | regelmæssig |
| regularly | ofte |
