| Abbreviation | Definition |
|---|---|
| CCTI | Carbon Career and Technical Institute |
| CCTI | Carbon Career Technical Institute |
| CCTI | College and Career Technical Institute |
| CCTI | Corporate and Community Training Institute |
| CCTI | Corporate Community Training Institute |
| CCTI | Court Clerks Training Institute |
| CCTI | Critical Care Training Institute |
| CCVI | Centennial Collegiate Vocational Institute |
| CCVI | Cordis Cardiac and Vascular Institute |
| CCWI | Community Clean Water Institute |
| CDFI | Community Development Financial Institution |
| CDFI | Community Development Financial Institutions |
| CDI | Child Development Institute |
| CDI | Cobalt Development Institute |
| CDI | Cooperative Development Institute |
| CDIB | Choreart Dance Institute of Bangkok |
| CDIS | Curriculum Development Institute of Singapore |
| CDIT | Coastal Development Institute of Technology |
| CDOI | Coastal Defence Object Institute |
| CDPI | Centrist Democracy Political Institute |