| Acronym | Definition |
|---|
| SSTA | Statistical Static Timing Analysis |
| SSTA | Sea Surface Temperature Anomaly |
| SSTA | Scottish Secondary Teachers' Association (Scotland) |
| SSTA | Saskatchewan School Trustees' Association |
| SSTA | Solid State Technology Association (Joint Electron Device Engineering Council; trade association) |
| SSTA | Shell Structures, Theory and Applications (conference) |
| SSTA | Southwest Safety Training Alliance (Tempe, AZ) |
| SSTA | Security Seal Testing Authority (UK) |
| SSTA | Social Studies Teachers Association |
| SSTA | Sunrise Side Travel Association (Tawas City, Michigan) |
| SSTA | Shenfield Station Taxi Association (UK) |