| Abbreviation | Definition |
|---|---|
| DHCPD | Dynamic Host Configuration Protocol Daemon |
| DHSD | Duplex High Speed Data |
| DIANA | Descriptive Intermediate Attributed Notation For Ada |
| DIANE | Direct Information Access Network for Europe |
| DID | Direct Inward Dial |
| DIDLS | Description Imagery Details Language Syntax |
| DIDO | Data In Data Out |
| DIF | Data Interchange Format |
| DIF | Directory Interchange Format |
| DIFF | Serv-Differentiated Services |
| DIL | Digital Impairment Learning |
| DIM | Digital Instant Message |
| DIM | Distributed Information Management |
| DIME | Direct Internet Message Encapsulation |
| DIMM | DSP Interface ManageMent |
| DINA | Digital International Networking Activities |
| DIP | Dynamic Internet Protocol |
| DIRN | Defined Interstate Railway Network |
| DIS | Deeply Integrated Systems |
| DIS | Desktop Infrastructure Services |