Political organisations
R
| Name | Type | Notes |
|---|---|---|
| Racecourse Betting Council Board | Miscellaneous | |
| Radical Parliamentary Group | Party group | |
| Railway Workers' One Union Movement | Pressure group | |
| RDC | check full name | |
| Rechabite | Religious | |
| Reform | Party group | |
| Reform League | Pressure group | |
| Reform (Manchester) | ||
| Repeal Association | Pressure group | |
| RIBA | Miscellaneous | |
| RNLI | Miscellaneous | |
| Rotary International | Miscellaneous | |
| Royal Agricultural Society of England | Miscellaneous | |
| Royal Arsenal | Miscellaneous | |
| Royal Arsenal | Social club | |
| Royal College of Surgeons | Miscellaneous | |
| Royal Colonial Institute | Miscellaneous | |
| Royal Commonwealth Society | International body | |
| Royal Dublin Society | Miscellaneous | |
| Royal Economic Society | Miscellaneous |