| Abbreviation | Definition |
|---|---|
| STADAN | Space Tracking and Data Acquisition Network |
| STADN | Space Tracking and Acquisition Network |
| STADU | System Termination and Display Unit |
| STAG | Shuttle Turnaround Analysis Group |
| STAR | Scientific and Technical Aerospace Report |
| STAR | Shuttle Turnaround Analysis Report |
| STARR | Schedule, Technical, and Resources Report |
| START | Shuttlecraft Training And Recruitment Techniques |
| STAS | Space Transportation Architecture Studies |
| STAT | STATistical |
| STAT | Status |
| STBD | Starboard |
| STBE | Space Transportation Booster Engine |
| STBY | STandBY |
| STC | Satellite Test Center |
| STC | Spacecraft Test Conductor |
| STC | Standard Test Configuration |
| STC | Systems Test Complex |
| STCP | Short-Term Cost Plan |
| STCS | Service Module Thermal Control Subsystem |