| CARN | Cadillac Aluminum Repair Network 
| Others |
| CARN | Canadian Adverse Reaction Newsletter
| Others |
| CARN | Canadian Analogue Research Network
| Others |
| CARN | Canadian Association of Rehabilitation Nurses
| Others |
| CARN | Cancer Awareness and Resource Network
| Others |
| CARN | Cancer Awareness Resource Network
| Others |
| CARN | Carncounty Archives Research Network
| Others |
| CARN | Certified Addictions Registered Nurse
| Others |
| CARN | Club Alpine Renault Norvege
| Others |
| CARN | Collaborative Action Research Network
| Others |
| CARN | Conservation Action Research Network
| Others |
| CARN | County Archive Research Network
| Others |
| CARN | County Archives Research Network
| Others |
| CARN | The Cambridge Action Research Network
| Others |