| Acronym | Definition |
|---|
| CIAS | Centro de Investigación y Acción Social (Spanish: Center for Social Action and Research; Buenos Aires, Argentina) |
| CIAS | Centre Intercommunal d'Action Sociale (French: Intermunicipal Center for Social Action) |
| CIAS | Center for Integrated Agricultural Systems (UW-Madison) |
| CIAS | Center for Infrastructure Assurance and Security (University of Texas, San Antonio) |
| CIAS | Center for Integrated Area Studies (Kyoto University; Japan) |
| CIAS | Canadian International Auto Show |
| CIAS | Changi International Airport Services (Singapore) |
| CIAS | Certified Investment Agent Specialist (real estate industry) |
| CIAS | Canadian International Air Show |
| CIAS | Cognitive Impairment Associated with Schizophrenia |
| CIAS | Center for Information Assurance and Security (University of Texas, Austin) |
| CIAS | Counterintelligence Analysis Section (US DoD) |
| CIAS | Conseil International de l'Action Sociale |
| CIAS | Center for International and Area Studies |
| CIAS | Center for Investment Advisory Services |
| CIAS | College of Imaging Arts and Science (Rochester Institute of Technology) |
| CIAS | Computer Imaging Analysis Software |
| CIAS | Circuit Inventory & Analysis System |