| Abbreviation | Definition |
|---|---|
| COORAUTH | Coordinating Authority |
| COP | combat outpost |
| COP | Command Observation Post |
| COP | Common Operational Picture |
| COP | Common Operational Plan |
| COP | Contingency Operation Plan |
| COP | Corps Of Engineers |
| COP-CSE | Common Operational Picture-Combat Support Enabled |
| COPG | Chairman, Operations Planners Group |
| COPOC | Corps Personnel Operations Center |
| COPPER | Consolidation of Pay and personnel |
| COPPERHEAD | Laser-guided artillery projectile |
| COPS | Communications Operational Planning System |
| COPS | Computer Output Processing Service |
| COR | Central Ontario Regiment |
| COR | Contracting Officer's Representative |
| CORA | Cost Of Risk Allocation |
| CORBA | Common Object Request Broker Architecture |
| CORBAN | Corps Battle Analyzer (Model) |
| CORBATF | CORps Battle Analysis Task Force |