| Abbreviation | Definition |
|---|---|
| NCUF | National Credit Union Foundation |
| NECU | New England Credit Union |
| NECU | Northeast Credit Union |
| NEFU | New England Farmers Union |
| NEHAWU | National Education Health Allied Workers Union |
| NEHAWU | National Education Health and Allied Workers Union |
| NEHAWU | National Education Health and Allied Workers' Union |
| NEIBP | National Elevator Industry Benefit Plans |
| NEPU | Nigeria Elements Progressive Union |
| NEPU | Northern Elements Progressive Union |
| NETU | National Employees Trade Union |
| NFCU | Navy Federal Credit Union |
| NFCU | Nevada Federal Credit Union |
| NFPU | Namibia Football Players Union |
| NFR | National Farmers Union |
| NFSW | National Federation of Sugar Workers |
| NFU | National Farmers Union |
| NFU | National Farmiers Union |
| NFU | Nordic Financial Unions |
| NFUS | National Farmers' Union of Scotland |