CARN
| Acronym | Definition |
|---|---|
| CARN | Certified Addictions Registered Nurse |
| CARN | County Archive Research Network (record office registration; UK) |
| CARN | Collaborative Action Research Network (UK) |
| CARN | Canadian Adverse Reaction Newsletter (Health Canada; Ottawa, Ontario, Canada) |
| CARN | Core Archaeological Record iNdex (UK) |
| CARN | Cambodian-American Radio Network |
| CARN | Community Accessible Remote Network (NASA) |