| Ronald Reagan | Ronald Reagan |
| Ronaldinho | Ronaldinho |
| Ronaldo | Ronaldo |
| Ronnie Peterson | Ronnie Peterson |
| roof | streha |
| Roof pendant | Med |
| roofing | prekritje |
| rook | trdnjava |
| room | prostor |
| Room chapel | Narteks |
| Roonstrasse Synagogue | Sinagoga |
| rooster | petelin |
| root | korenina |
| Roots reggae | Roots rock reggae |
| Roque Júnior | Roque Júnior |
| Rosa | Vrtnica |
| Rosa Luxemburg | Rosa Luxemburg |
| Rosa Parks | Rosa Parks |
| Rosaceae | Rožnice |
| Rosario | Rožni venec |
| rosary | rožni venec |
| Rosary of the Blessed Virgin Mary | Rožni venec |
| rose | vrtnica |
| Rosegg | Rožek |
| rosemary | rožmarin |
| Rosen | Vrtnica |
| Rosetta Stone | Kamen iz Rosette |
| Ross Brawn | Ross Brawn |
| Ross Dependency | Rossova odvisnost |
| Ross Ice Shelf | Rossova ledena polica |
| Ross Island | Rossov otok |
| Rossiya | Rusija |
| Rossiya Airlines | Rusija |
| Rosso Fiorentino | Rosso Fiorentino |
| Rostislav Alexeyev | Rostislav Jevgenjevič Aleksejev |
| Rostock | Rostock |
| Roswell UFO incident | Incident v Roswellu |
| Rotameter | Rotameter |
| Rotary encoder | Revolver |
| rotary furnace | rotacijska peč |
| Rotation period | Vrtilna doba |
| Rotorcrart | Helikopter |
| rotten | gnil |
| Rotterdam | Rotterdam |
| Rouen | Rouen |
| Rouen-Les-Essarts | Rouen-Les-Essarts |
| rough-legged buzzard | koconoga kanja |
| Roumania | Romunija |
| round bracket | oklepaj |
| Round of ammunition | Naboj |
| Rounded in form | Zaokrožanje |
| route | pot |
| router | usmerjevalnik |
| Rovinj | Rovinj |
| Roy Orbison | Roy Orbison |
| Royal Air Force | Vojno letalstvo |
| Royal and noble ranks | Plemiški nazivi |
| Royal arms | Grb |
| Royal Borough of Kingston upon Thames | Kingston |
| Royal Flying Corps | Kraljevi letalski korpus |
| Royal Navy | Kraljeva vojna mornarica |
| Royal Society | Kraljeva družba |
