| Acronym | Definition |
|---|
| ACCIS | American College of Computer & Information Sciences |
| ACCIS | Assistant Center of Certification and Inspection for Sustainability (Japan) |
| ACCIS | Automated Command & Control Information System |
| ACCIS | Alpha Command and Control Information System |
| ACCIS | Air Cargo Consultancy International Services (India) |
| ACCIS | Asian and Pacific Islander Center for Census Information and Services |
| ACCIS | Air Combat Command Information System |
| ACCIS | Army Command & Control Information System |
| ACCIS | Allied Command Europe Command, Control & Intelligence System |
| ACCIS | Asociación Coordinadora de Comunidades Indígenas de El Salvador (Spanish: Coordinating Association of Indigenous Communities of El Salvador) |