| Abbreviation | Definition |
|---|---|
| STOL | Short Takeoff and Landing |
| STOMP | Specialized Training Of Military Parents |
| STOMPS | Stand-Alone Tactical Operational Message Processing System |
| STOP | Sit, Think, Observe, and Plan |
| STOP | Start Talking Over Problems |
| STOW | Synthetic Theater Of War |
| STOW-E | Synthetic Theater Of War - Europe |
| STOW-TMD | Synthetic Theater Of War-Theater Missile Defense |
| STP | Security Technical Procedure |
| STP | Segmenting, Targeting, and Positioning |
| STP | Service Transformation Project |
| STP | Short Term Project |
| STP | Software Test Plan |
| STP | Special Tactics Protocol |
| STPO | Strategic Targets Product Office |
| STPR | Software Test Procedure |
| STQ | Shoot The Queer |
| STQ | Software Test Questionnaire |
| STR | Separation Transformation Reintegration |
| STR | Shoot The Russkie |