| Abbreviation | Definition |
|---|---|
| DCO | Dead Cell Operatives |
| DCO | Defense Connect Online |
| DCO | Defense Coordinating Officer |
| DCO | Dial Central Office |
| DCOC | Damage Control Operational Concepts |
| DCOC | Digital Combat Operations Center |
| DCOMDT | Deputy Commandant |
| DCOR | Defense Committee On Research |
| DCOS | Defense Computing Operations Support |
| DCOS | Deputy Chief Of Staff |
| DCOT | Digital Captain of the Turret |
| DCOV | Define, Characterize, Optimise, and Verify (6-sigma) |
| DCP | Damage Control Party |
| DCP | Damage Control Plate |
| DCP | Decision Coordinating Paper |
| DCP | Defense Civilian Personnel |
| DCP | Defense Continuity Program |
| DCP | Detainee Collection Point |
| DCP | Development Concept Paper |
| DCP | Direct Combat Probability |