| CIEC | California Inland Empire Council 
| Others |
| CIEC | Canada India Education Council
| Others |
| CIEC | Canadian Interprovincial Equestrian Championships
| Others |
| CIEC | Centre for Industry Education Collaboration
| Others |
| CIEC | Certified Indoor Environmental Consultant
| Others |
| CIEC | China International Exhibition Center
| Others |
| CIEC | Citizens Internet Empowerment Coalition
| Others |
| CIEC | Commission Internationale de l'Etat Civil
| Others |
| CIEC | Conference for Industry and Education Collaboration
| Others |
| CIEC | Connecticut Industrial Energy Consumers
| Others |
| CIEC | Contemporary Issues in Early Childhood
| Others |
| CIEC | Council-certified Indoor Environmental Consultant
| Others |