| BGSA | Botany Graduate Student Association | 植物学研究生协会 |
| BGSA | Botany Graduate Students Association | 植物学研究生协会 |
| BGSA | Biology Graduate Student Association | 生物学研究生协会 |
| BGSA | Black Graduate Student Association | 黑人研究生协会 |
| BGSA | Brampton Girls Softball Association | 布兰普顿女子垒球协会 |
| BGSA | Biomedical Graduate Student Association | 生物医学研究生协会 |
| BGSA | Battle Group Support Advisor | 战斗群支持顾问 |
| BGSA | Battle Group Systems Advisor | 战斗群系统顾问 |
| BGSA | Bybelgenootskap van Suid-Afrika (Bible Society of South Africa) | Bybelgenootskap van Suid Afrika(南非圣经学会) |
| BGSA | blood granulocyte-specific activity | 血粒细胞比活性 |
| BGSA | Bybelgenootskap van Suid-Afrika | 南非荷兰语 |
| BGSA | Banded Geographical Service Area | 带状地理服务区 |