| CISA | Certified Information Systems Auditor | 注册信息系统审计师 |
| CISA | China Iron and Steel Association | 中国钢铁协会 |
| CISA | Casting Industry Suppliers Association | 铸造行业供应商协会 |
| CISA | China Iron & Steel Association | 中国钢铁协会 |
| CISA | Computer and Information Science Association | 计算机与信息科学协会 |
| CISA | Cambridge International Studies Association | 剑桥国际研究协会 |
| CISA | Consejo Indio de SudamÉrica (Indian Council of South America) | Consejo Indio de SudamÉrica (Indian Council of South America) |
| CISA | Certified Information Security Auditor | 注册信息安全审计员 |
| CISA | Commission Internationale de Secours Alpin (French) | Alpin国际借调委员会（法语） |
| CISA | Centre for Institutional Support in Africa | 非洲机构支助中心 |
| CISA | Criminal Intelligence Service Austria | 奥地利刑事情报局 |
| CISA | Certified Information System Auditor | 信息系统审计师 |
| CISA | Central de Inversiones SA (Spanish) | Central de Inversiones SA（西班牙语） |
| CISA | Center for International Security Affairs | 国际安全事务中心 |
| CISA | Countably-Infinite Source Alphabet | 无限源字母表 |
| CISA | C4I Integration Support Activity | C4I集成支持活动 |
| CISA | Consejo Indio de SudamÉrica (Spanish) | Consejo Indio de SudamÉrica (Spanish) |
| CISA | Coalition Information Sharing Architecture | 联盟信息共享架构 |
| CISA | Community Information Strategies Australia | 澳大利亚社区信息战略 |
| CISA | Command Information Superiority Architectures (formerly C4ISR Integrated Architecture Program, CIAP) | 指挥信息优势体系结构（原C4ISR综合体系结构计划，CIAP） |
| CISA | Criminal Intelligence Service Alberta | 阿尔伯塔省刑事情报局 |