| Abbreviation | Definition |
|---|---|
| DC3 | Data Center 3 |
| DCA | Direct Connect Availability |
| DCC | Direct Channel Communication |
| DCC | Direct Client To Client |
| DCC | Direct Client-to-Client |
| DCC | Directed Client To Client |
| DCE | Data Communication Equipment |
| DCEF | Distributed Cisco Express Forwarding |
| DCF | Distributed Content Framework |
| DCHK | Domain availability Check |
| DCI | Data Communication Interface |
| DCI | Device Control Interface |
| DCI | Dictionary Command Interpreter |
| DCIM | Digital Camera Image Management |
| DCN | Digital Communications Network |
| DCN | Distributed Computing Network |
| DCNI | Data Center Network Infrastructure |
| DCOA | Dynamic Change Of Address |
| DCOP | Desktop COmmunications Protocol |
| DCPN | District of Columbia area Podcast Network |