| Acronym | Definition |
|---|
| BCSU➣Buckinghamshire Chilterns Students Union (UK) |
| BCSU➣Blood Component Separation Unit |
| BCSU➣Bangladesh Cha Sramik Union (Bangladeshi labor union) |
| BCSU➣Black Cougar Shock Unit |
| BCSU➣Board Configuration Switching Unit |
| BCSU➣Bridgwater College Student Union (Somerset, England, UK) |
| BCSU➣Business College of Shanxi University (China) |