| RA | Royal Academy (skr.) |
|---|---|
| RAE | Royal Aircraft Establishment, Kráľovský letecký ústav (skr.) |
| RI | Royal Institution (skr.) |
| RIN | Royal Indian Navy (skr.) |
| RM | Royal Mail (skr.) |
| RM | Royal Marines (skr.) |
| RMA | royal Military Academy (skr.) |
| RNR | royal Naval Reserve (skr.) |
| RO | Royal Observatory (skr.) |
| RRC | Royal Red Cross (skr.) |