| Abbreviation | Definition |
|---|---|
| DLD | Detroit Lincoln Denver Route |
| DLG | Digital Line Graph |
| DLG | Discus Launched Glider |
| DLK | Detroit Lakes Amtrak Station (Not Michigan) |
| DLR | Docklands Light Railway |
| DLSGP | Driver's License Security Grant Program |
| DM | Departure Management |
| DMB | Drum Mechanical Brakes |
| DMC | Dangerous Mechanical Condition |
| DMC | Delorian Motor Car |
| DMD | Dangerous Mesh Database |
| DME | Digital Motor Electronics |
| DME/P | Precision Distance Measuring Equipment |
| DMN | Data Multiplexing Network |
| DMRB | Design Manual for Roads and Bridges |
| DMS | Driving Motor Second gear |
| DMSS | Directorate of Maritime Ship Support |
| DMTS | DeLong Mountain Transportation System |
| DMU | Diesel Multiple Unit |
| DMV | Department of Mammal Vehicles |