STSN
| 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) |