| SWSS | Shallow Water Surveillance System
| Others |
| SWSS | Siemens Weiss Spindle Services
| Others |
| SWSS | Small Water Systems Services
| Others |
| SWSS | Social Work Students Society
| Others |
| SWSS | Socialist Worker Student Society
| Others |
| SWSS | Socialist Workers Student Society
| Others |
| SWSS | Socialist Workers' Student Society
| Others |
| SWSS | South Wales Socialist Society
| Others |
| SWSS | Southern Weed Science Society
| Others |
| SWSS | Sperm Whale Seismic Study
| Others |
| SWSS | Strategic Waiver School Systems
| Others |
| SWSS | Strategic Waivers School System
| Others |
| SWSS | Student And Worker Solidarity For Socialism
| Others |
| SWSS | Student Welfare and Support Services
| Others |
| SWSS | Sustainable Water Supply and Sanitation
| Others |