SSSA
| Acronym | Definition |
|---|---|
| SSSA | Scuola Superiore Sant'Anna (Italian: Saint Anna Advanced School) |
| SSSA | Soil Science Society of America |
| SSSA | Small-Signal Stability Analysis |
| SSSA | Single Sided SwingArm (motorcycle) |
| SSSA | Sotos Syndrome Support Association |
| SSSA | Subway Surface Supervisors Association (NYCTA) |
| SSSA | Space Station Solar Array |
| SSSA | Substitute Single Service Accommodation (UK MoD) |
| SSSA | Site Safeguards and Security Agreement |
| SSSA | Square Spiral Slot Antenna |
| SSSA | Submarine Sonar Subjective Analysis |