| Acronym | Meaning |
| TACL | Tac Left |
| TACLERON | Tacticial Eletronic Warfare Squadron |
| TACNAV | Tactical Navigator |
| TACR | Tac Right |
| TACTAS | Tactical Towed Array Sonar |
| TACTERM | Tactical Terminal |
| TACTS | Tactical Aircrew Combat Training System |
| TAD | Temporary Additional Duty |
| TADC | Tactical Air Direction Center |
| TADIXS | Tactical Data Info Exchange Subsystem |
| TADMUS | Tactical Decision Making Under Stress |
| TADSTAND | Tactical Digital System Standards |
| TAEAS | Tactical Asw Environmental Acoustic Support |
| TAEG | Training Analysis And Evaluation Group |
| TAGB | Tilt Axis Gearbox |
| TAM | Table Assignment Metrix |
| TAOC | Tactical Air Operations Center |
| TARPS | Tactical Airborne Reconnaissance Program System |
| TAS | Target Acquisition System (tacdew Mk 23) |
| TAS | True Airspeed |
| TASPE | Towed Array Signal Processing Equipment |
| TAT | Turnaround Time |
| TBA | To Be Assigned |
| TBAT | Towed Buoy Antenna Trainer (trident-8d35) |
| TBD | To Be Determined |
| TCAP | Trainer Corrective Action Program |
| TCB | Target Control System Bulletin (tdc 78) |
| TCC | Target Control System Change (tdc 77) |
| TCCB | Trainer Change Control Board |
| TCL | Thrust Control Lever |
| TCMDR | Troop Commander |
| TCN | Tacan |
| TCNP | Tacan Point To Point |
| TCO | Technical Contracting Office |
| TCP | Trainer Change Proposal (tpecp) |
| TCP/IP | Transmission Control Protocol/internet Protocol |
| TCPR | Trident Command & Control System Problem Report |
| TCR | Task Change Request (ntec-3930/25) |
| TD | Technical Directive |
| TD | Technical Director |
| TD | Technical Documentation |
| TD | Tradevman |
| TD | Training Device |
| TDC | Technical Directive Code |
| TDC | Trident Data Center |
| TDD | Technical Discussion Document |
| TDD | Temporary Design Departure |
| TDF | Tactical Digital Facsimile |
| TDL | Tactical Data Link |
| TDMA | Time Division Multiple Access |