| Acronym | Definition |
|---|
| CISSA➣Committee of Intelligence and Security Services of Africa (African Union) |
| CISSA➣Consorzio Intercomunale Servizi Socio Assistenziali |
| CISSA➣Conference on Imaging Science Systems and Applications |
| CISSA➣Computer Information Systems Student Association |
| CISSA➣China International School Sports Association |
| CISSA➣Centres d'Information et de Soins de Santé Ambulatoires (French: Mobile Information and Healthcare Centers) |
| CISSA➣Cayman Islands Security Services Association |
| CISSA➣Certificate In Systematic Skills Acquisition |