| Abbreviation | Definition |
|---|---|
| TDD | Target DGZ (Desired Ground Zero) Designator |
| TDD | Time-Definite Delivery |
| TDDM | Time Division Digital Multiplexing |
| TDDS | Tactical Data Distribution System (formerly TRAP) |
| TDF | Tactical Digital Facsimile |
| TDF | Test Data Folder |
| TDF | Total Devastation Forever |
| TDFD | Time Delay Firing Device |
| TDI | Technology Demonstration Item |
| TDIC | Time Division Interface Controller |
| TDIG | Time Division Interface Group |
| TDIM | Time Division Interface Group |
| TDIM | Time Division Interface Module |
| TDL | Tactical Data Link |
| TDLU | Tactical Data Link Upgrade |
| TDM | Test Data Management |
| TDM | Time Division Multiplexed |
| TDM | Time Division Multiplexing |
| TDM | Transportable, Deployable, and/or Mobile |
| TDMA | Time Division Multiple Access |