| Acronym | Definition |
|---|
| CIAT | Centro Internacional de Agricultura Tropical (Spanish: International Center for Tropical Agriculture, Colombia) |
| CIAT | Centro Interamericano de Administraciones Tributarias (Spanish: Inter-American Center of Tax Administrations) |
| CIAT | Chartered Institute of Architectural Technologists (UK) |
| CIAT | Coalition to Insure Against Terrorism |
| CIAT | Compagnie Internationale André Trigano (French: André Trigano International Company) |
| CIAT | Comité Interministériel d'Aménagement du Territoire (French: Interministerial Committee for Territorial Planning; Haiti) |
| CIAT | Comité International d’Accompagnement de la Transition (French: International Committee to Support Transition; Democratic Republic of Congo) |
| CIAT | Constraint-Induced Aphasia Therapy |
| CIAT | Counterintelligence Analytic Team (US DoD) |
| CIAT | Centre Intégré en Alimentation et Tourisme (Quebec, Canada) |
| CIAT | Combined Integrated Air and Missile Defense and Anti-Submarine Warfare Trainer (Tatitlek Corporation) |
| CIAT | Centre interaméricain des Administrateurs Fiscaux (French: Inter-American Centre of Tax Administrations) |
| CIAT | Collaborative Infrastructure Assessment Tool |
| CIAT | California Institute of Automotive Technology |
| CIAT | Compagnie Industrielle d'Application Thermiques (French: Thermics Application Industrial Company) |