| Abbreviation | Definition |
|---|---|
| NCCU | North Coast Credit Union (now Parma School Employees Credit Union) |
| NCFCU | Neighborhood Community Federal Credit Union |
| NCMO | Nederlandse Credit Management Organisatie |
| NCU | Niagara Credit Union |
| NCUA | National Credit Union Administration |
| NDCUL | North Dakota Credit Union League |
| NFCU | NASA Federal Credit Union |
| NFCU | Nashville Firemen's Credit Union |
| NFCU | Nationwide Federal Credit Union |
| NFCU | Navy Federal Credit Union |
| NFCU | Neenah Foundry Credit Union |
| NFCU | Neighbors Federal Credit Union |
| NFCU | Nevada Federal Credit Union |
| NFCU | Nordstrom Federal Credit Union |
| NFIB | National Federation of Independent Business |
| NHCCU | New Horizons Community Credit Union |
| NII | Net Interest Income |
| NMD | Non-Maturity Deposits |
| NMS | Non-Maturity Shares |
| NWCCU | Northwest Community Credit Union |