| Acronym | Definition |
|---|
| CIAM | Congrès Internationaux d'Architecture Moderne (International Congresses of Modern Architecture) |
| CIAM | Central Institute of Aviation Motors (Moscow, Russia) |
| CIAM | Centro Israelita de Assistência ao Menor |
| CIAM | Chartered Insurance Agency Manager |
| CIAM | Congresos Internacionales de Arquitectura Moderna |
| CIAM | Centre for Integrated Assessment Modelling |
| CIAM | Centre International d'Admission aux Études de Management (French: International Admission Center for Management Studies) |
| CIAM | Centre d'Informations et d'Activités Musicales (French: Information Center and Musical Activities) |
| CIAM | Centre for Industrial and Applicable Mathematics |
| CIAM | Center for International Assignment Management |
| CIAM | Colégio Integrado Americano |
| CIAM | Contemporary Issues in Arts Management (annual conference; UK) |
| CIAM | Centro Internazionale di Animazione Missionaria |
| CIAM | Compagnie d'Imprimerie Administrative Méditerranéenne (French: Mediterranean Administrative Printing Company) |
| CIAM | Centre d'Initiative Artistique du Mirail (French: Mirail Artistic Initiative Center; University of Toulouse-Le Mirail) |
| CIAM | Commission Interdisciplinaire d'Anthropologie Médicale |
| CIAM | Center for Infrastructure Assessment and Management |
| CIAM | Centre for Industrial Automation and Manufacture |
| CIAM | Client Independent Access Model |
| CIAM | Compagnie Ivoirienne d'Avitaillement Maritime |
| CIAM | Central Institute Aviation Motors |
| CIAM | Cercle International des Amis de la Musique (International Music-Lovers' Circle; Geneva, Switzerland) |
| CIAM | Christians In Action Ministries |
| CIAM | Critical Infrastructure Access Management |
| CIAM | Club Italiano Alaskan Malamutes |