| Royal Marines | Marines Reales |
| Royal Military Academy Sandhurst | Real Academia de Sandhurst |
| Royal Military College of Canada | Royal Military College |
| Royal Moroccan Air Force | Fuerza Aérea de Marruecos |
| Royal Moroccan Navy | Marina Real Marroquí |
| Royal Museums of Fine Arts of Belgium | Museos reales de Bellas Artes de Bélgica |
| Royal Navy | Marina Real |
| Royal Netherlands Football Association | Real Federación de Fútbol de los Países Bajos |
| Royal Netherlands Navy | Marina Real de los Países Bajos |
| Royal Opera House | Royal Opera House |
| Royal Palace | Palacio Real de Nápoles |
| Royal Palace of Madrid | Palacio Real de Madrid |
| Royal Pavilion | Royal Pavilion |
| Royal Philharmonic Orchestra | Orquesta Filarmónica Real |
| Royal Prussia | Reino de Prusia |
| Royal Rife | Royal Rife |
| Royal Rumble | Royal Rumble |
| Royal Saltworks at Arc-et-Senans | Salina real de Arc-et-Senans |
| Royal Scots Greys | Scots Greys |
| Royal Scottish National Orchestra | Orquesta Nacional Real de Escocia |
| Royal Society | Royal Society |
| Royal Society for the Protection of Birds | Royal Society for the Protection of Birds |
| Royal Society of Chemistry | Sociedad científica |
| Royal Spoonbill | Platalea regia |
| Royal Swedish Academy of Music | Real Academia Sueca de Música |
| Royal Swedish Academy of Sciences | Real Academia de las Ciencias de Suecia |
| Royal Thai Armed Forces | Real Ejército Tailandés |
| Royal Thai Army | Real Ejército Tailandés |
| Royal Ulster Constabulary | Real Policía del Ulster |
| Royal Uncle Cao | Cao Guojiu |
| Royal Victorian Order | Real Orden Victoriana |
| Royal Warrant | Orden Real |
| royalism | monarquismo |
| royalist | monárquico |
| royalties | derechos de autor |
| royalty | miembro de la familia real |
| Royston Drenthe | Royston Drenthe |
| Roystonea | Roystonea regia |
| Roztocze | Acari |
| rozzer | tira |
| Roßwein | Roßwein |
| Rožňava | Distrito de Rožňava |
| Rožňava District | Distrito de Rožňava |
| RPG | Juegos de Rol |
| RPM Package Manager | RPM Package Manager |
| RR Lyrae star | Estrellas RR Lyrae |
| RR Telescopii star | Estrellas RR Telescopii |
| RRA star | Estrella RRA |
| RRAB star | Estrella RRAB |
| RRB star | Estrella RRB |
| RRC star | Estrella RRC |
| RRDtool | RRDtool |
| rRNA | ARNr |
| Rrose Sélavy | Marcel Duchamp |
| RS Canum Venaticorum star | Estrellas RS Canum Venaticoru |
| RS Gimnástica de Torrelavega | Gimnástica de Torrelavega |
| RSA | RSA |
| RSA Factoring Challenge | Competición de factorización RSA |
| RSA number | Competición de factorización RSA |
| RSA Security | RSA Security |
| RSD Alcalá | Real Sociedad Deportiva Alcalá |
| RSHA | Oficina Central de Seguridad del Reich |
| RSS | RSS |
| RST | Reset |
| rsvp | se ruega la respuesta |
