CEC
- All-China Federation of Industry and Commerce
- American Culinary Federation
- CEC Awards
- CEC Bank
- Caesars Entertainment Corporation
- California Energy Commission
- Cambridge English Corpus
- Camouflage Central-Europe
- Canadian Ecology Centre
- Canadian Electrical Code
- Canadian Electroacoustic Community
- Canadian Engineering Competition
- Career Education Corporation
- Career Enrichment Center
- Cation-exchange capacity
- Cebu Eastern College
- Center for Elephant Conservation
- Central Election Commission (Taiwan)
- Central Election Commission (Ukraine)
- Central Election Commission of the Russian Federation
- Central Elections Committee (Israel)
- Central European Convention
- Charismatic Episcopal Church
- Chief Election Commissioner of India
- China Electronics Corporation
- Chinese Education Center
- Chuck E. Cheese
- Circulating endothelial cell
- Citizens Electoral Council
- City of Edinburgh Council
- Civil Engineer Corps
- Clean Energy Collective
- Cobequid Educational Centre
- College of Engineering Chengannur
- College of Engineering, Cherthala
- Commission for Environmental Cooperation
- Commission of the European Communities
- Commonwealth Engineers Council
- Community Education Centers
- Conference of European Churches
- Consol Energy Center
- Consolidated Engineering Corporation
- Consumer Electronics Control
- Contaminants of emerging concern
- Continental Engineering Corporation
- Continuing education credit
- Cooperative Engagement Capability
- Cranbrook Educational Community
- Cruzeiro Esporte Clube
- Círculo de Escritores Cinematográficos
- Dead Space (video game)
- Del Norte County Airport
- IEEE Congress on Evolutionary Computation
- National Polytechnic School