| Abbreviation | Definition |
|---|---|
| DARMS | Dynamic Aviation Risk Management Solution |
| DART | Diamond Aircraft Reconnaissance Trainer |
| DART | Drone Aviation Resourcing and Technology |
| DASP | Defence Aviation Safety Program |
| DASR | Defence Aviation Safety Regulations |
| DATK | Delta Airlines Technical Knowledge |
| DB | Database or Data Base |
| db | Decibel |
| DBDA | Design Basis Depressurization Accident |
| DCA | Department of Civil Aviation |
| DCA | Displays and Crew Alerting |
| DCAF | Display Crew Alerting Function |
| DCAF | Display & Crew Alerting Function |
| DCMF | Data Communication Management Function |
| DCP | Display Control Panel |
| DCV | Directional Control Valve |
| DDB | Data Disconnect Bracket |
| DDG | Dispatch Deviation Guide |
| DDL | Det Danske Luftfartselskab (in Danish) Danish Air Lines |
| DDL | Differed Defect List |