| Abbreviation | Definition |
|---|---|
| CONRAD | Canadian Oilsands Network for Research and Development |
| COP | Canada Olympic Park |
| COPA | Canadian Office Products Association |
| COPA | Canadian Online Publishing Awards |
| COPA | Canadian Owners and Pilots Association |
| COPE | Canadian Office and Professional Employees |
| COPF | Canadian Ornamental Plant Foundation |
| COPL | Canadian Overseas Petroleum Limited |
| COPM | Canadian Occupational Performance Measure |
| COPR | Canadian Organization of Paramedic Regulators |
| CORD | Canadian Organization for Rare Disorders |
| CORE | Canadian Ombudsperson for Responsible Enterprise |
| CORP | Central Ontario Regional Parliament |
| CORR | Canadian Organ Replacement Register |
| CORS | Canadian Operational Research Society |
| COS | Canadian Oil Sands |
| COSEPAC | COmité sur la Situation des Espèces en Péril au Canada |
| COSIA | Canadian Oil Sands Innovation Alliance |
| COTA | Canada Organic Trade Association |
| COTC | Canadian Officers' Training Corps |