| Acronym | Definition |
|---|
| SSTI | Strategy for Science, Technology and Innovation (Ireland) |
| SSTI | State Science & Technology Institute (Westerville, OH) |
| SSTI | State Smart Transportation Initiative (University of Wisconsin) |
| SSTI | Skin and Soft Tissue Infection |
| SSTI | Small Spacecraft Technology Initiative |
| SSTI | Size Specific to Instrument (finance) |
| SSTI | Satellite-to-Satellite Tracking Instrument |
| SSTI | Skin and Skin Structure Infection |
| SSTI | Sub Sea Tie In |
| SSTI | Six Sigma Technical Institute (Motorola, Inc.) |
| SSTI | Simulation Systems Technologies, Inc (Voorhees, NJ) |