| Abbreviation | Definition |
|---|---|
| DIT | Directory Information Tree |
| DIVE | Direct Interface Video Extension |
| DK | Default Knowledge |
| DKI | Driver Kernel Interface |
| DL | Definition List |
| DL | Deluxe |
| DL | Description Length |
| DL | Directory Listing |
| DL/1 | Data Language 1 |
| DLBL | Disk Label |
| DLE | Data Link Escape |
| DLF | Distilled Log Format |
| DLM | Distributed Lock Manager |
| DLM | Dynamic Link Module |
| DLS | Device Level Selection |
| DLSE | Device Level Selection Enhanced |
| DLSW | Data Link Switching |
| DLT | Digital Linear Tape |
| DLUR | Dependent LU Requester |
| DLUR/S | Dependent LU Requester / Server |