| Acronym | Definition |
|---|
| CIEC | China International Exhibition Center (China) |
| CIEC | Contemporary Issues in Early Childhood (international research journal) |
| CIEC | Clave de Identificación Electronica Confidencial (Mexican electronic confidential code) |
| CIEC | Citizens Internet Empowerment Coalition |
| CIEC | Commission Internationale de l'État Civil (French: International Commission on Civil Status) |
| CIEC | Conference on International Economic Cooperation |
| CIEC | California Inland Empire Council (Boy Scouts of America) |
| CIEC | Creative and Innovative Economy Center (George Washington University Law School) |
| CIEC | Council-certified Indoor Environmental Consultant (American Council for Accredited Certification) |
| CIEC | Comité Intersyndical des Élections Consulaires (French: Interunion Committee of Consular Elections) |
| CIEC | Centre International des Engrais Chimiques (French: International Center of Chemical Fertilizer; est. 1933) |
| CIEC | Cement Industry Environment Consortium |