| Abbreviation | Definition |
|---|---|
| DEC | Different Error Costs |
| DEC | Digital Equipment Corporation |
| DEHS | Debian External Health Status |
| DEMS | Digital Evidence Management Software |
| DERAP | Delivering Expanded Resources for AIDS Programming |
| DES | Data Encryption Software |
| DESI | Data Entry Software For Industry |
| DESP | Data Element Standardisation Programme |
| DEV | Developer |
| DEV | DEVelopment |
| DEVEL | development |
| DEVS | Developers |
| DEWI | Data Extraction Web Interface |
| DF | Desktop File |
| DF | Display Full |
| DFAS | Distributed Finding Aids Server |
| DFC | Differential File Compression |
| DFCF | Data Flow Configuration File |
| DFE | Doom Front End |
| DFF | Dynamic File Format |