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 Association | Party group | |
| SDF | Party group | Social Democratic Federation |
| SEA | Miscellaneous | |
| Secondary Schools Association | Miscellaneous | |
| Selsdon Group | Party group | |
| Shaftesbury Society | Pressure group | |
| Shelter | Pressure group | |
| Shepherds | Social club | |
| Shipbuilding Employers Federation | Pressure group | |
| Shipowners International Association | Miscellaneous |