UBSA
| Acronym | Definition |
|---|---|
| UBSA | University of Ballarat Student Association (Australia) |
| UBSA | Urbanizadora del Bajio, SA (Spanish: Developer of the Bajio, SA; construction company; Bajio, Mexico) |
| UBSA | University of Bath Staff Association (Bath, UK) |
| UBSA | University Biological Safety Adviser (various universities; UK) |
| UBSA | United Business School Association |
| UBSA | Upper-Band Sub-Array |