| Abbreviation | Definition |
|---|---|
| DATV | Dutch Amfibious Transport Vehicles |
| DAU | Data About Us |
| DAV | Decentralized Autonomous Vehicles |
| DAVI | Data for Automated Vehicle Integration |
| DAVI | Dutch Automated Vehicle Initiative |
| DAVS | Driver And Vehicle Services |
| DAY | James M Cox Dayton International Airport |
| DB | Deutsche Bahn |
| DB9 | David Brown (Aston Martin car model) |
| DBCM | Driver Baggage Claim Meet point |
| DBCSA | Dirt Bike Club of San Antonio |
| DBN | Day Beacon |
| DBR | Dowel Bar Retrofit |
| DBRITE | Digital Bright Radar Indicator Tower Equipment |
| DBSA | Dirt Bike Club of San Antonio |
| DBST | Double Bituminous Surface Treatment |
| DC | Direct Contracting |
| DC | Douglas Commercial |
| DCA | Dedicated Commuter Alliance |
| DCA | Ronald Reagan Washington National Airport |