| Acronym | Definition |
|---|
| D2D | Device-to-Device (communications) |
| D2D | Disk-To-Disk (backup technology/strategy) |
| D2D | Digital-to-Digital (converter) |
| D2D | Day to Day |
| D2D | Data to Decision (program) |
| D2D | Door to Door (sales) |
| D2D | Drive to Drive |
| D2D | Disk to Disk |
| D2D | Desktop to Desktop |
| D2D | Design to Delivery (various organizations) |
| D2D | Discovery to Delivery (various meanings) |
| D2D | Dealer to Dealer |
| D2D | Database to Database |
| D2D | Department to Department |
| D2D | District-to-District (education) |
| D2D | Direct to Disk (recording technology) |
| D2D | Dot to Dot |
| D2D | Doorway to Dreams (Allston, MA) |
| D2D | Division to Division |
| D2D | Direct to Data (ParkerVision, Inc.) |
| D2D | Data to Desktop |