| Abbreviation | Definition |
|---|---|
| CEFCU | Chelsea Employees Federal Credit Union |
| CEFCU | Citizens Equity First Credit Union |
| CEIU | Canada Employment and Immigration Union |
| CELU | Confederation of Ethiopian Labor Unions |
| CEP | Communications, Energy, and Paperworkers |
| CEPU | Communications Electrical and Plumbing Union |
| CEPU | Communications, Electrical and Plumbing Union |
| CETU | Confederation of Ethiopian Trade Unions |
| CEUR | Center for European Union Research |
| CFCU | Cannon Federal Credit Union |
| CFCU | Century Federal Credit Union |
| CFCU | Cheney Federal Credit Union |
| CFCU | Chesterfield Federal Credit Union |
| CFCU | Chevron Federal Credit Union |
| CFCU | Christiansted Federal Credit Union |
| CFCU | Communication Federal Credit Union |
| CFCU | Connecticut Federal Credit Union |
| CFCU | Corry Federal Credit Union |
| CFFCU | Cambridge Firefighters Federal Credit Union |
| CFFCU | Catholic Family Federal Credit Union |