| Abbreviation | Definition |
|---|---|
| DC | District of Columbia |
| DC | División de Contrainteligencia |
| DC&P | Data Collection and Processing |
| DC/SRA | Deputy Chief of Staff for Reserve Affairs |
| DCA | Damage Control Assistant |
| DCA | Defense Communications Agency |
| DCA | Defense Consultant Adviser |
| DCA | Defense Cooperation Agreement |
| DCA | Defensive Counter-Air |
| DCA | Dependant Care Account |
| DCA | Director of Community Activities |
| DCA | Distributed Computing Architecture |
| DCA | Dual-Capable Aircraft |
| DCAA | Defense Contracts Audit Agency |
| DCAF | Democratic Control of Armed Forces |
| DCAG | Data Collection and Analysis Group |
| DCAM | DMLSS (Defense Medical Logistics Standard Support) Customer Assistance Module |
| DCAP | Defense Conversion Assistance Program |
| DCAP | Dependent Care Assistance Plan |
| DCAPES | Deliberate and Crisis Action Planning and Execution Segments |