| Abbreviation | Definition |
|---|---|
| CCU | Community Credit Union |
| CCU | Consumers Credit Union |
| CCU | Cornerstone Credit Union |
| CCU | Coventry Credit Union |
| CCU | Cowlitz Credit Union |
| CCUL | California Credit Union League |
| CCUL | Cape Credit Union League |
| CCUL | Central Credit Union of Lithuania |
| CCUL | Colorado Credit Union League |
| CCUSH | Community Credit Union of Southern Humbolt |
| CDCU | Chemainus and District Credit Union |
| CDCU | Community Development Credit Union |
| CDCU | Cumberland District Credit Union |
| CECU | Community Educators Credit Union |
| CEFCU | Chesterfield Employees Federal Credit Union |
| CF | Credit Foncier |
| CFCU | Constellation Federal Credit Union |
| CFCU | Construction Federal Credit Union |
| CFCU | Continental Federal Credit Union |
| CFCU | Cornell Fingerlakes Credit Union |