| ACSIS | Acute Coronary Syndrome Israeli Survey 
| Others |
| ACSIS | Ad Hoc Committee on the Student Information System
| Others |
| ACSIS | African Civil Society on the Information Society
| Others |
| ACSIS | Algonquin College Student Information System
| Others |
| ACSIS | American Council for the Study of Islamic Societies
| Others |
| ACSIS | Annals of Computer Science and Information Systems
| Others |
| ACSIS | Athletic Conference of Singapore International Schools
| Others |
| ACSIS | Atlantic Climate System Integrated Study
| Others |