| Abbreviation | Definition |
|---|---|
| IFCU | Interstate Federal Credit Union |
| IFCU | Island Federal Credit Union |
| I-REFCU | Ingersoll-Rand Employees Federal Credit Union |
| IS | Individual Savings |
| ISCU | Island Savings Credit Union |
| IUCU | Indiana University Credit Union |
| JFCU | Jacksonville Firemans Credit Union |
| JFCU | JAX Federal Credit Union |
| JFCU | Justice Federal Credit Union |
| KCU | Kitsap Credit Union |
| KFCU | Kahuku Federal Credit Union |
| KFCU | Katahdin Federal Credit Union |
| KFCU | Kearney Federal Credit Union |
| KFCU | Keesler Federal Credit Union |
| KFCU | Kern Federal Credit Union |
| KFCU | Ketema Federal Credit Union |
| KFCU | Keystone Federal Credit Union |
| KFCU | Kings Federal Credit Union |
| KFCU | Kirkland Federal Credit Union |
| KFCU | Kirtland Federal Credit Union |