| rude | uhøflig |
| Rude boy | Rude boy |
| Rudersdal municipality | Rudersdal Kommune |
| Rudi Völler | Rudi Völler |
| rudimentary | elementær |
| Rudkøbing municipality | Rudkøbing Kommune |
| Rudolf | Lake Turkana |
| Rudolf August Oetker | Rudolf August Oetker |
| Rudolf Barshai | Rudolf Barshai |
| Rudolf Bultmann | Rudolf Bultmann |
| Rudolf Carnap | Rudolf Carnap |
| Rudolf Diesel | Rudolf Diesel |
| Rudolf Hess | Rudolf Hess |
| Rudolf Höß | Rudolf Höß |
| Rudolf Schenker | Rudolf Schenker |
| Rudolf Steiner | Rudolf Steiner |
| Rudolf von Sebottendorf | Rudolf von Sebottendorff |
| Rudolf Walden | Rudolf Walden |
| Rudolfsheim-Fünfhaus | Rudolfsheim-Fünfhaus |
| Rudolph | Rolf |
| Rudolph Giuliani | Rudolph Giuliani |
| Rudolph of France | Raul |
| Rudolph the Red-Nosed Reindeer | Rensdyret Rudolf |
| Rudra | Rudra |
| Rudy Giuliani | Rudolph Giuliani |
| Rudyard Kipling | Rudyard Kipling |
| ruffled | kruset |
| Rufous-necked Wryneck | Rødstrubet vendehals |
| Rufous-tailed Jacamar | Rødhalet jacamar |
| Rufus Scrimgeour | Rufus Scrimgeour |
| Rugby football | Rugby |
| Rugged | Bakket |
| Ruggero Leoncavallo | Ruggiero Leoncavallo |
| Rugiewit | Rugievit |
| Rugila | Vej |
| Ruhnu | Runø |
| Ruhollah Khomeini | Ruhollah Khomeini |
| Ruhr | Ruhr |
| Ruhr Area | Ruhr-distriktet |
| ruin | ruin |
| Rukum District | Rukum District |
| rule | regel |
| Rule of St Benedict | Benedikts Regel |
| rule of thumb | tommelfingerregel |
| Rule of tincture | Tinktur |
| rule with an iron fist | jernnæve |
| ruler | lineal |
| Rulling spirit | Drivende kraft |
| rum | rom |
| Rumania | Rumænien |
| Rumex acetosella | Rødknæ |
| Rumex longifolius | By-Skræppe |
| Rumiko Takahashi | Rumiko Takahashi |
| ruminant | drøvtygger |
| Ruminantia | Firemavedrøvtygger |
| ruminate | drøvtygge |
| rumor | rygte |
| rumour | rygte |
| run | løbe |
