- BARN stands for Bromsgrove and Redditch Network (UK)
- BARN stands for Building Additional Rural Networks (Department of Broadband Communications and the Digital Economy; Australia)
- BARN stands for Bubba Army Radio Network
- BARN stands for Bilateral Acute Retinal Necrosis (retinal death)
- BARN stands for Board of Airlines Representatives in Nepal
- BARN stands for Bath Area Real-estate News
BARN