| Acronym | Definition |
|---|
| STSN➣Set and Test Sequence Number |
| STSN➣Stichting Tubereuze Sclerosis Nederland (Dutch: Netherlands Tuberous Scelerosis Foundation) |
| STSN➣Southern Tier Senior Net (computer learning facility) |
| STSN➣Suite Technology Systems Network (Utah) |
| STSN➣Seaman, Sonar Technician Striker (Naval Rating) |
| STSN➣Science and Technology Studies Network (University of Canterbury; Christchurch, New Zealand) |
| STSN➣Statement of Transition Service Needs (education) |