| Acronym | Definition |
|---|
| SSST➣Southeastern Symposium on System Theory |
| SSST➣Supersonic Sea Skimming Target |
| SSST➣Sarajevo School of Science and Technology (Bosnia and Herzegovina) |
| SSST➣Short Scottish Secure Tenancy (Scottish law) |
| SSST➣Super Secret Sideboard Tech (gaming, CCG Magic:The Gathering) |
| SSST➣Stealth Satellite System Terminator |
| SSST➣Space Station Systems Trainer |
| SSST➣Standard Seedbox Screening Test |
| SSST➣Simulation System Support Team |
| SSST➣Society of the Most Holy Trinity (The Trinitarians) (religious order) |
| SSST➣Smart Sensor System Testbed (networking) |