| Abbreviation | Definition |
|---|---|
| SSA | System Science Applications |
| SSANU | Senior Staff Association of Nigeria Universities |
| SSANU | Senior Staff Association of Nigerian Universities |
| SSANU | Senior Staff Association of Nigerian University |
| SSAU | Samara State Aerospace University |
| SSB | Sapporo School of Business |
| SSB | Star Spangled Banner |
| SSC | Science Standardization Committee |
| SSC | Senior Secondary Council |
| SSC | Speaking Society Club |
| SSC | Stevents Student Center |
| SSC | Student Success Celebration |
| SSCS | Social Science Computing Site |
| SSDA | Social Science Data Archive |
| SSDA | Social Science Data Archives (Australian National University, now ASSDA) |
| SSDA | Stout Student Dietetic Association |
| SSDD | Staff and Student Development Department |
| SSDP | Students for Sensible Drug Policy |
| SSE | Senior Scientists and Engineers |
| SSEES | School of Slavonic and East European Studies |