| Abbreviation | Definition |
|---|---|
| CNML | Certified Nurse Manager and Leader |
| CNMT | Certification in Nuclear Medicine Technology |
| CNP | Certified Nonprofit Professional |
| CNPCC | Certified Nutritional Practitioners Council of Canada |
| CNRN | Certified Neuroscience Registered Nurse |
| CNSA | Certified Network Security Administrator |
| CNSP | Certified Natural Shoreline Professionals |
| CNTA | Certified National Threat Analyst |
| CNTP | Certified Nutrition Therapy Practitioner |
| CNTP | Certified Nutritional Therapy Practitioner |
| COA | Certificate of Accuracy |
| COA | Certificate of Authority |
| COA | Certificate of Authorization |
| COA | Certified OpenStack Administrator |
| COAP | Certificate of Advanced Proficiency |
| COBE | Certificate Of Business Excellence |
| COC | Certificate Of Clearance |
| COC | Certificate Of Completion |
| COC | Certificate of Confidentiality |
| COC | Certificate Of Coverage |