| Abbreviation | Definition |
|---|---|
| SSCM | Serbian Society for Computational Mechanics |
| SSDI | Social Security Disability Insurance |
| SSG | Standards Services Group |
| SSMA | Steel Stud Manufacturers Association |
| SSMA | Student Sports Medicine Association |
| SSMP | Society of Senior Market Professionals |
| SSOA | Shore Soccer Officials Association |
| SSOA | South Sound Officials Association |
| SSOT | Saskatchewan Society of Occupational Therapists (Canada) |
| SSPA | Service and Support Professionals Association |
| SSPT | Swiss Society of Pharmacology and Toxicology |
| SSQ | Society for Software Quality |
| SSR | Society for the Study of Reproduction |
| SSR | Society of Skeletal Radiology |
| SSRB | Spreadsheet Standards Review Board |
| SSRN | Social Science Research Network |
| STA | SCSI (Small Computer System Interface) Trade Association |
| STA | Society for Technology in Anesthesia |
| STA | Student Travel Association |
| STAA | Shiatsu Therapy Association of Australia |