Political organisations
R
| Name | Type | Notes |
|---|---|---|
| Royal Empire Society | Miscellaneous | |
| Royal Horticultural Association | Miscellaneous | |
| Royal Institute of International Affairs | Miscellaneous | |
| Royal Institution | Miscellaneous | |
| Royal Irish Academy | Miscellaneous | |
| Royal Medical Society | Trade group | |
| Royal Overseas League | Miscellaneous | |
| Royal Philosophical Society | Miscellaneous | |
| Royal Scottish Auto | Social club | |
| Royal Society | Miscellaneous | |
| Royal Society for the Prevention of Cruelty to Animals | Pressure group | |
| Royal Society of St George | Miscellaneous | |
| Rubber Trade Association | Miscellaneous | |
| Rugby Football Union | Miscellaneous | |
| Rural District Councils Association | Miscellaneous | |
| Rural Labourers' League | Pressure group |