| 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 |