CEC may refer to:
Education
- College of Engineering Chengannur, Kerala, India
- College of Engineering, Cherthala, Kerala, India
- Association Citizens Educational Center, a non-profit organization in Bosnia and Herzegovina
- Canadian Ecology Centre
- Cobequid Educational Centre, a high school in Truro, Nova Scotia
- Cranbrook Educational Community
Business
- Continental Engineering Corporation
- Career Education Corporation
- Casa de Economii şi Consemnaţiuni, a Romanian bank
- Chuck E. Cheese's
- Consol Energy Center
- Chicony Electronics Company, a manufacturer of digital cameras and other products
Organisations
- California Energy Commission
- Canadian Electroacoustic Community
- Canadian Engineering Competition
- Center for Elephant Conservation
- The Central Election Commission, which organises elections in Kosovo
- Central Election Committee for India
- Israeli Central Elections Committee
- Central European Convention, a subgroup of IAESTE
- Charismatic Episcopal Church
- Conference of European Churches
- Citizens Electoral Council of Australia
- Civil Engineer Corps of the United States Navy
- Commission for Environmental Cooperation
- Commission of the European Communities
- IEEE Congress on Evolutionary Computation
- Crown Estate Commission
Other
- Consumer Electronics Control, a part of the HDMI interface specification
- Canadian Electrical Code
- Continuing education credit, an alternate term for continuing education unit
- Cation exchange capacity in soil sciences
- Concordance Extraction Corporation, a fictional deep space mining company in the video game Dead Space
- Cruzeiro Esporte Clube, a Brazilian football club
- Chief Election Commissioner of India
- IATA code for Del Norte County Airport