| Abbreviation | Definition |
|---|---|
| DLD | Digital Liaison Detachment |
| DLDED | Division-Level Data Entry Device |
| DLEA | Drug Law Enforcement Agency |
| DLED | Dedicated Loop Encryption Device |
| DLED | Digital Line Encryption Device |
| DLI | Defense Language Institute |
| DLI | Douglas Light Infantry |
| DLI | Durham Light Infantry |
| DLIELC | Defense Language Institute English Language Center |
| DLIFLC | Defense Language Institute Foreign Language Center |
| DLIR | Defense Logistics Information Research Program |
| DLIR | Depot Level Inspection and Repair |
| DLIR | Downward Looking Infrared Radar |
| DLIS | Defense Logistics Information Service |
| DLM | Document Lifecycle Management |
| DLMS | Digital Land Mass System |
| DLOGS | Division Logistic System |
| DLOGS | Division Logistics System |
| DLOSP | Dropping Last Outwards Sea Pilot |
| DLP | Data Link Processor |