| Acronym | Meaning |
| ST | Special Tooling |
| ST | Star Tracker |
| ST | Star Tracker |
| ST | Starter |
| ST | Static |
| ST | Structural |
| STA | Shuttle Training Aircraft |
| STA | Static Test Article |
| STA | Station |
| STA | Structural Test Article |
| STA | Structural Test Article |
| STA | RScientific And Technical Report |
| STA | RShuttle Turnaround AnalYsis Report |
| STAB | Stabilize |
| STADAC | Station Data Acquisition And Control |
| STADAN | Satellite Tracking And Data Acquisition Network |
| STADAN | Space Tracking And Data Acquisition Network |
| STADN | Space Tracking And Acquisition Network |
| STADU | System Termination And Display Unit |
| STAG | Shuttle Turnaround AnalYsis Group |
| STARR | Schedule |
| STAT | Statistics |
| STAT | Status |
| STATION | (KSStation (KSC) |
| STBD | Starboard |
| STBY | Standby |
| STC | Satellite Test Center |
| STC | Spacecraft Test Conductor |
| STC | Standard Test Configuration |
| STC | Systems Test Complex |
| STCP | Short-Term Cost Plan |
| STD | Shuttle Test Director |
| STD | Standard |
| STD | Lfollows) |
| STD | LStandard Distribution List (letter Denoting Which List |
| STDN | Space Flight Tracking And Data Network |
| STDN | Space Tracking And Data Network |
| STDN | Spaceflight Tracking And Data Network |
| STDY | Steady |
| STE | Special Test EquiPment |
| STE | System Test Engineer |
| STF | Spin Test Facility (see DSTF) |
| STF | Structural Fatigue Test |
| STG | Stage |
| STIL | Software Test And Integration Laboratory |
| STIRD | SAIL Test Implementation Requirements Document |
| STL | Space Technology Laboratories |
| STLOS | Star Line Of Sight |
| STM | Signal Termination Module |
| STM | Static Test Model |