| Abbreviation | Definition |
|---|---|
| NRA | No Rational Argument |
| NRA | Not Responsible Again |
| NRB | Not Recommended Behavior |
| NRCE | National Registry of Child Evaders |
| NRD | National Rescue Directory |
| NRLC | Natural Resources Law Center |
| NRRB | National Remedy Review Board |
| NS | Non Submitted |
| NSCLC | National Senior Citizens Law Center |
| NSK | No Self Kontrol |
| NSOR | National Sex Offender Registry |
| NSR | Never Seems Right |
| NSRL | National Software Reference Library |
| NSSP | Non-Settlement Sponsorship Participant |
| NSWLR | New South Wales Law Reports |
| NT | Not Trustworthy |
| NTA | National Thug Association |
| NTA | Ninja-Type Assassin |
| NTC | Not True Children |
| NTQ | Notice To Quit |