Political organisations
S
| Name | Type | Notes |
|---|---|---|
| Salvation Army | Religious | |
| Scottish Conservatives | Party Group | |
| Scottish Home Rule Association | Pressure Group | |
| Scottish Labour Housing Association | Pressure Group | |
| Scottish Liberal | Party Group | |
| Scottish Medical Campaign for Nicaragua | Pressure Group | |
| Scottish Old Age Pensioners Association | Pressure Group | |
| Scottish Socialist Teachers' Society | Trade Group | |
| Scottish Temperance League | Pressure Group | |
| Scottish Trades Union Congress | Miscellaneous | |
| Scottish Unionist | Party Group | |
| Scottish Unionist Association | Party Group | |
| SDF | Miscellaneous | |
| SEA | Miscellaneous | |
| Secondary Schools Association | Miscellaneous | |
| Selsdon Group | Party Group | |
| Selsdon Group | Party Group | |
| Shaftesbury Society | Pressure Group | |
| Shelter | Pressure Group | |
| Shepherds | Social Club |