| Abbreviation | Definition |
|---|---|
| CDRI | Central Drug Research Institute |
| CECRI | Central Electro Chemical Research Institute |
| CEFIM | Carl and Emily Fuchs Institute for Microelectronics |
| CEFIM | Carl Emily Fuchs Institute for Microelectronics |
| CEHI | Community Eye Health Institute |
| CEI | Cape Eleuthera Institute |
| CEI | Central European Institute |
| CEI | Cincinnati Eye Institute |
| CEI | Computer Ethics Institute |
| CEI | Continuing Education Institute Continuing Education Institute |
| CEIF | Cincinnati Eye Institute Foundation |
| CEIT | Central European Institute of Technology |
| CELI | Chief Executive Leadership Institute |
| CELI | Cleverlearn English Language Institute |
| CELI | Current English Language Institute |
| CEMI | Central Economics and Mathematics Institute |
| CEMI | Community Engagement Member Institution |
| CERI | Central Earthquake Research Institute |
| CERI | Chemicals Evaluation and Research Institute |
| CERI | Cognitive Enhancement Research Institute |