| Abbreviation | Definition |
|---|---|
| BSU | Black Students United |
| BSU | Bluefield State University |
| BSU | Boise State Boise State University |
| BSU | Boise State University |
| BSU | Bowie State University |
| BSU | Bridgewater State University |
| BSUC | British Schools and Universities Club |
| BSUN | Black Sea Universities Network |
| BSUO | Ball State University Observatory |
| BTBU | Beijing Technology and Business University |
| BTCD | The Brain Tumor Center at Duke |
| BTI | Boston Theological Institute |
| BTIU | Break Time In University |
| BTL | Basement Tutorial Laboratory |
| BTN | Breakthrough To Nursing |
| BTP | Bachelor Of Technology Project |
| BTTI | Bangladesh Technology Training Institute |
| BTTI | Behavior Therapy Training Institute |
| BTU | Baltimore Towson University |
| BTUH | Basildon and Thurrock University Hospitals |