| Acronym | Definition |
|---|
| VISAR➣Virgin Islands Search and Rescue (British Virgin Islands) |
| VISAR➣Video Image Stabilization and Registration (image enhancement software) |
| VISAR➣Vienna Interdisciplinary Symposium on Aortic Repair (cardiology) |
| VISAR➣Victorian Injury Surveillance and Applied Research System (Australia) |
| VISAR➣Velocity Interferometer System for Any Reflector |
| VISAR➣Voice Interoperability System for Amateur Radio |