SSTU
| Acronym | Definition |
|---|---|
| SSTU | Saratov State Technical University (Russia) |
| SSTU | State School Teachers' Union (Australia) |
| SSTU | Street Survival Training Unit (New Zealand) |
| SSTU | Single Stage to Utah (slang for X-33, built to test Lockheed VentureStar Concept SSTO - RLV) |