| Abbreviation | Definition |
|---|---|
| DGI | Dynamic Graphics, Inc. |
| DGMS | Diesel Generator Monitoring System |
| DGN | Design Graphic Norms |
| DGNSS | Differential Global Navigation Satellite Systems |
| DGR | Dangerous Goods Regulations |
| DH | Deutsche Harte |
| DH | Double Height |
| DHCR | Direct Hot Charge Rolling |
| DHES | Dynamic Heat Emission System |
| DHP | Dental Health Products |
| DI | Dealer Installed |
| DI | Ductile Iron |
| DIC | Dual Identification Compass |
| DIFAC | Dubai International Furniture Accessories & Components & Semi-Finished Products Show |
| DIM | Dual-Induction Massage |
| DIP | Ductile Iron Pipe |
| DIRECTMACRO | At Direct Macro, we proudly assume the role of your steadfast technology ally, committed to providin |
| DIRP | Diesel Idling Reduction Program |
| DIS | Distributerless Ignition System |
| Disk | computer subjects use 'Disc' for Disk |