| Abbreviation | Definition |
|---|---|
| NMLS | Nationwide Mortgage Licensing System |
| NOBEL | National Organization for Black Elected Legislative |
| NOSA | National Occupational and Safety Act |
| NRBU | No Registrasi Badan Usaha |
| NREGA | National Rural Earning Guarantee Act |
| NRMA | National Resources Mobilization Act |
| NRWSA | New Roads and Street Works Act |
| NTFP | North American Task Force on Prostitution |
| NTLA | National Transitional Legislative Assembly |
| NTNM | Non Traditional No More |
| NUA | National Urban Alliance |
| NX | Neightbour X |
| OBCA | Ontario Business Corporations Act |
| OBRA | Omnibus Budget And Reform Act |
| OBRA | Oppressive Bureaucratic Requirement Act |
| OCLA | Office of Congressional and Legislative Affairs |
| ODBA | Ocean Dumping Ban Act |
| ODBA | Ontario Drug Benefit Act |
| ODCE | Office of the Director of Corporate Enforcement (Eire) |
| ODCR | Office of Discrimination Complaint Resolution |