| Abbreviation | Definition |
|---|---|
| STEPS | Service Transition Education Purpose And Success |
| STEPS | Service, Transition, Education, Purpose, and Success |
| STF | Some Tests Failed |
| STF | Special Task Force |
| STF | Special Terrorist Forces |
| STF | Storm The Front |
| STF | Super Twin Fan |
| STFU | Superior Tactical Fragging Unit |
| STG | Seasonal Target Graphic |
| STG | Shoot The Gook |
| STG | Sonar Technician (Surface) |
| STG | Sonar Technician Surface |
| STG44 | Sturmgewehr 44 |
| STGPA | Special Task Group on Protocol Architecture |
| STGR | Steam Generator Tube Rupture |
| STH | Sent To Hell |
| STI | Standard Terminal Interface |
| STICS | Scalable Transportable Intelligence Communications System |
| STIG | Space Technology Interdependency Group |
| STIP | Small Terminal Interoperability Platform |