| Abbreviation | Definition |
|---|---|
| MZO | Ministerial Zoning Order |
| N | Nebraska |
| N | Nouvelle-Écousse |
| NA | New Amsterdam |
| NA | Not Assessed |
| NAC | Nutrition Advisory Council |
| NACC | Norwegian American Chamber of Commerce |
| NACH | Nachitoches, Texas |
| NACO | National Association of Counties |
| NADRA | National Advanced Database Registration Authority (Pakistan) |
| NAE | Nevada Association of Employers |
| NAFIS | National Association of Family Information Services |
| NAIRU | Non-Accelerating Inflation Rate of Unemployment |
| NAN | No Action Necessary |
| NAR | Name and Address Registry/Int'nl |
| NATL | Natural Area Teaching Laboratory |
| NB | Naples Beach |
| NB | New Bedford |
| NB | New Brunswick |
| NB | North Beach |