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