| Abbreviation | Definition |
|---|---|
| TDADS | Test Data Analysis and Decision System |
| TDAP | Total Distribution Action Plan |
| TDAR | Tactical Defense Alert Radar |
| TDARDS | Truth Data Acquisition, Recording, and Display System |
| TDATD | Total Distribution Advanced Technology Demonstration |
| T-Day | Effective Day Coincident With Presidential Declaration of A National Emergency and Authorization of Partial Mobilization |
| TDB | Tactical Data Base |
| TDB | Tank Destroyer Battalion |
| TDB | Terrain Database |
| TDB | The Devils Brigade |
| TDB | Transportation Database |
| TDBM | Technical Database Management |
| TDBMS | Tactical Database Management System |
| TDBSS | Theater Defense Blood Standard System |
| TDC | Tactical Data Coordinator |
| TDC | Technical Development Conference |
| TDC | Technology Demonstration Center |
| TDC | Time Dispersed Coding |
| TDC | Torpedo Data Computer |
| TDD | Tactical Display Device |