| Acronym | Definition |
|---|
| BAIS➣Baird's Sparrow (bird species) |
| BAIS➣Battlefield Anti-Intrusion System |
| BAIS➣Bell Atlantic Internet Solutions |
| BAIS➣Backward Alarm Indication Signal |
| BAIS➣Blind Adaptive Interference Suppression |
| BAIS➣Battlefield Automation Interoperability System |
| BAIS➣Battlefield Airborne Instrumentation System |