CCI
- 201
- CCI (ammunition)
- CCI Europe
- CCI Phantom
- CCI5*
- Cache Coherent Interconnect
- California Correctional Institution
- Canadian Condominium Institute
- Canadian Conservation Institute
- Canine Companions for Independence
- Capital Cargo International Airlines
- Castleton Commodities International
- Center for Citizen Initiatives
- Center for Computational Innovations
- Center for Copyright Information
- Center for Creative Imaging
- Charlson Comorbidity Index
- Chillicothe Correctional Institution
- Chinese Culinary Institute
- Cinema City International
- Citizens Commission of Inquiry
- Classic College International
- Cleveland-Cliffs
- Co-Counselling International
- Co-channel interference
- Coca-Cola İçecek
- Coded-Call Indicator
- Collegiate Championship Invitational
- Columbia Correctional Institution (Wisconsin)
- Columbus Correctional Institution
- Comic Con India
- Command Control Interface
- Commodity Channel Index
- Communication-Centric Intelligence Satellite (CCI-Sat)
- Compal Electronics
- Competition Commission of India
- Computer Consoles Inc.
- Concours Complet International
- Concurrent Controls, Inc.
- Consolidated Communications
- Consumer Confidence Index
- Controlled Cryptographic Item
- Coon Chicken Inn
- Copy Control Information
- Council of Common Interests
- Craniocervical instability
- Cricket Club of India
- Cross Cancer Institute
- Crown Castle
- Cultural industries
- Current conveyor
- Custom Coasters International
- Director telephone system
- Iowa Citizens for Community Improvement
- Java EE Connector Architecture
- MIT Center for Collective Intelligence
- Microsoft SQL Server