| Roncesvalles | Roncesvalles |
| Ronchetti Cup | Copa Ronchetti |
| Ronco-sopra-Ascona | Ronco-sopra-Ascona |
| Rondane National Park | Parque Nacional Rondane |
| Ronde van Vlaanderen | Tour de Flandes |
| Rondeslottet | Rondeslottet |
| rondo | rondó |
| Rondônia | Rondonia |
| Rongbuk Monastery | Monasterio de Rongbuk |
| Rongelap Atoll | Rongelap |
| Rongellen | Rongellen |
| Rongerik Atoll | Rongrik |
| Rongorongo | Rongo rongo |
| Ronnie James Dio | Ronnie James Dio |
| Ronnie Peterson | Ronnie Peterson |
| Ronon Dex | Ronon Dex |
| rood | cruz |
| roof | tejado |
| roof beam | traves |
| roof of the mouth | paladar |
| roof tile | teja |
| roofing | cobertura |
| Roofingtile | Tégula |
| roofless | sin hogar |
| rooftop | tejado |
| rook | embaucar |
| rookery | colonia de grajos |
| rookie | principiante |
| room | espacio |
| room and board | interno |
| Room at the Top | Un lugar en la cumbre |
| Room chapel | Nártex |
| Room on Fire | Room On Fire |
| room service | servicio de habitación |
| room temperature | temperatura ambiente |
| roomer | inquilino |
| roomful | cuarto lleno |
| roommate | compañero de cuarto |
| roomy | cómodo |
| Roonstrasse Synagogue | Sinagoga |
| Roosevelt | Roosevelt |
| Roosevelt Corollary | Corolario Roosevelt |
| Roosevelt Skerrit | Roosevelt Skerrit |
| roost | dormir |
| rooster | gallo |
| roosting | dormitivo |
| root | raíz |
| root beer | cerveza de raíz |
| root crop | cultivo de raíces comestibles |
| root for | decantarse |
| Root nameserver | Servidor Raíz |
| Root nodule | Rhizobium |
| Root of unity | Raíz de la unidad |
| root out | desarraigar |
| root vegetable | cultivo de raíces comestibles |
| Root-finding algorithm | Resolución numérica de ecuaciones no lineales |
| rooted | arraigado |
| rooting | enraizamiento |
| Rootkit | Rootkit |
