| Acronym | Meaning |
 | TEMP | Test And Evaluation Master Plan |
 | TEMS | Transport Environment Monitoring System |
 | TEOS | Tetraethyl Orthosilicate |
 | TEP | Technical Evaluation Panel |
 | TEP | Test Evaluation Plan |
 | TER | Test Equipment Readiness |
 | TER | Time Estimating Relationship |
 | TERL | Test Engineer Readiness List |
 | TERL | Test Equipment Readiness List |
 | TERM | Terminate |
 | TESH | Technical Shop |
 | TET | Test Evaluation Team |
 | TF | Test Facility |
 | TF | Test Fixture |
 | TFC | Time From Cutoff |
 | TFCS | Triplex Flight Control System (Subsystem) |
 | TFE | Time From Event |
 | TFF | Time To Free Fall |
 | TFI | Time From Ignition |
 | TFL | Telemetry Format Load |
 | TFL | Time From Launch |
 | TFOV | Total Field Of View |
 | TFR | Trouble And Failure Report |
 | TFS | Telemetry Format Selection |
 | TFU | Test Facility Utilization |
 | TG | Ground Systems |
 | TG | Ground Systems (KSC Directorate) |
 | TGA | Thermal Gravimetric Analysis |
 | TGA | Trace Gas Analyzer |
 | TGO | Time To Go |
 | TGOWG | Teleoperator Ground Operations Working Group |
 | TGS | Rate Gyro Assembly |
 | TGS | Telemetry Ground Station |
 | TGS | Telemetry Ground System |
 | TGSE | Telemetry Ground Support Equipment |
 | TGT | Target |
 | THC | Translation Hand Controller |
 | THC | Translational Hand Controller |
 | THDS | Time Homogeneous DataSet |
 | THEO | Theoretical |
 | THERM | Thermal |
 | THOLD | Threshold |
 | THOUS | Thousarid |
 | THP | Thrust Horsepower |
 | THROT | Throttle |
 | TI | Information Systems (KSC Directorate) |
 | TI | Technical Integration |
 | TI | Training Integrator (Integration) |
 | TIC | Technical Information Center |
 | TIC | Total Item Change |