| Abbreviation | Definition |
|---|---|
| BSA | Bendigo Student Association |
| BSA | Bengali Students Association |
| BSA | Black Student Association |
| BSA | Bor Students Association |
| BSA | Borneo Students Association |
| BSAP | Black Student Achievement Program |
| BSB | Bauer-Sames-Bogart Residence Hall (Rose-Hulman Institute of Technology) |
| BSBR | Biomedical and Systems Biology Research |
| BSC | Booze Schmooze And Cruise |
| BSC | Bureau of Study Counsel |
| BSE | Best Selection Examination |
| BSE | Best Semester Ever |
| BSE | Board of Secondary Education |
| BSEA | Buffalo School Engineers' Association |
| BSEB | Buhai School Examination Board |
| BSEU | Belarus State Economic University |
| BSEU | Belarusian State Economic University |
| BSEU | Belarussian State Economic University |
| BSFC | Berkeley Student Food Collective |
| BSFC | Black Staff and Faculty Caucus (USC) |