| Acronym | Definition |
|---|
| BUIS➣Back Up Iron Sight |
| BUIS➣Buck Island Reef National Monument (US National Park Service) |
| BUIS➣Bath University Islamic Society (UK) |
| BUIS➣Burning Up in Speed (online community) |
| BUIS➣Brunel University Islamic Society (United Kingdom) |
| BUIS➣Bond University Institute for Sport (Robina, QLD, Australia) |