| BLA | Bearn Landing Area | 电子束落区 |
| BLA | Biologic License Application | 生物制品许可申请 |
| BLA | Bank Loan Agreement | 银行贷款协议 |
| BLA | Black Lawyer Association | 黑人律师协会 |
| BLA | Bhai Log Association | Bhai原木协会 |
| BLA | Barcelona, Venezuela - Gral Jose Antonio Anzoategui (Airport Code) | 委内瑞拉巴塞罗那-Gral Jose Antonio Anzategui(机场代码) |
| BLA | Black Lung Association | 黑肺协会 |
| BLA | Basic Loan Agreement | 基本贷款协议 |
| BLA | Boring Lame Annoying | 令人厌烦的Lame |
| BLA | Boundary Line Adjustment (city planning) | 边界线调整(城市规划) |
| BLA | Barcelona, Venezuela | 委内瑞拉巴塞罗那 |
| BLA | Best Linear Approximation | 最佳线性近似 |
| BLA | Bachelor of Liberal Arts | 文科学士 |
| BLA | Balochistan Liberation Army | 俾路支解放军 |
| BLA | Biologics License Application | 生物制品许可申请 |
| BLA | buccolabial | 颊部的 |
| BLA | Siksika | 西克西卡 |
| BLA | Buffy Loves Angel | 巴菲爱天使 |
| BLA | Biologics License Agreement (US FDA) | 生物制品许可协议(美国FDA) |
| BLA | Biologic License Application (US FDA) | 生物许可证申请(美国FDA) |
| BLA | Baseline Agreement | 基线协议 |
| BLA | Boston Latin Academy | 波士顿拉丁学院 |
| BLA | Basolateral Amygdala | 下外侧杏仁核 |
| BLA | Boating Law Administrator | 划船法律管理员 |
| BLA | Bidirectional Line Amplifier | 双向线路放大器 |
| BLA | Black Liberation Army | 黑人解放军 |
| BLA | Bracket & Linkage Assembly | 支架和连杆总成 |
| BLA | Base Level Assessment | 基准水平评估 |
| BLA | Blocking Acknowledgement (ITU-T) | 阻止确认(ITU-T) |
| BLA | Bill Low and Associates (Abbotsford, BC, Canada) | Bill Low及其合伙人(加拿大BC省阿伯茨福德市) |
| BLA | Bureau of Legislative Affairs | 立法事务局 |
| BLA | Better Left Alone | 更好的独处 |
| BLA | Bridged Line Appearance (telephony) | 桥接线路外观(电话) |