| Acronym | Definition |
|---|
| FSST➣Four Square Step Test (balance) |
| FSST➣Field Service Shock Test (US Navy) |
| FSST➣Flandreau Santee Sioux Tribe (Indian tribe) |
| FSST➣Falling Stage Systems Tract |
| FSST➣Forensic Science Service Tasmania (Australia) |
| FSST➣Forward Space Support to Theater |
| FSST➣Fixed Sample Size Test |
| FSST➣Fixed Site Satellite Terminal |
| FSST➣Freeze Slow Start Threshold |
| FSST➣Fire Support Simulations Trainer |
| FSST➣Full-Scale Smoke Testing |
| FSST➣Financial Services to Schools Team |