| Abbreviation | Definition |
|---|---|
| NNPT | Nuclear Non-Proliferation Treaty |
| Norele | No related and no relevancy |
| NP | Notify Party |
| NPT | Non-Proliferation Treaty |
| NRBC | Netherlands Roman Business Club |
| NRBF | Norwegian Russian Business Forum |
| NRBM | Netherlands Russia Business Meet |
| NRBP | North Range Business Park |
| NRC | Nuclear Regulatory Commission |
| NRIC | National Registration Identity Card |
| NRL | Nuclear Referral List |
| NS | National Security |
| NSA | National Security Agency |
| NSC | National Security Council |
| NSD | National Security Directive |
| NSF | National Safety Foundation |
| NSG | Nuclear Suppliers Group |
| NSO | National Security Override |
| NSTEDB | The National Science & Technology Entrepreneurship Development Board |
| NTB | Non-Tariff Barrier |