| Acronym | Definition |
|---|
| BSU➣Ball State University |
| BSU➣Boise State University |
| BSU➣Bemidji State University |
| BSU➣Black Student Union |
| BSU➣Bowie State University (Bowie, Maryland) |
| BSU➣Boligsparing for Ungdom (Norwegian: Housing Savings for Young) |
| BSU➣Brigade de Sûreté Urbaine (French: Urban Police Brigade) |
| BSU➣Baptist Student Union (college religious organization) |
| BSU➣Bacillus |
| BSU➣Benguet State University (Philippines) |
| BSU➣Belarusian State University (Minsk, Belarus) |
| BSU➣Behavioral Science Unit (FBI) |
| BSU➣Base Station Unit |
| BSU➣Blood Supply Unit (US DoD) |
| BSU➣Balkan Speleological Union (Bulgaria) |
| BSU➣Base Service Unit |
| BSU➣Beam Steering Unit (sub-system of electronically scanned antenna arrays) |
| BSU➣Basic Semantic Unit |
| BSU➣Benue State University (Nigeria; est. 1992) |
| BSU➣Boat Support Unit |
| BSU➣N,N-Bis-Trimethylsilyl-Urea (chemistry) |
| BSU➣Bus Switching Unit |
| BSU➣Bulk Storage Unit (Military) |
| BSU➣Baseband Separation Unit |
| BSU➣Beloved Spousal Unit |
| BSU➣Bomb Stabilizer Unit |
| BSU➣Bukhara State University (Uzbekistan) |
| BSU➣Bosch Smoke Unit (fuel engineering) |
| BSU➣Biological Survey Unit (USGS Patuxent Wildlife Research Center) |