| Abbreviation | Definition |
|---|---|
| NOPE | Northern Ohio Parents For Equality |
| NOR | Native Oyster Reef |
| NORD | National Organisation for Rare Disorders |
| NORM | National Organization of Restoring Men |
| NORML | National Organization For Reform Of Marijuana Laws |
| NOSI | Nonprofit Open Source Initiative |
| NOVA | National Office for Victims of Abuse |
| NOVA | National Organization for Victim Assistance |
| NOVAF | Nurses Organization of Veterans Affairs Foundation |
| NOWA | Naz Old Boys Welfare Association |
| NOWF | National Organization for Women Foundation |
| NP | Non Profit |
| NPA | National Parking Association |
| NPA | National Pig Association |
| NPA | National Pigeon Association |
| NPA | National Policy Association |
| NPA | Natural Philosophy Alliance |
| NPA | Norwegian People’s Aid |
| NPA | Norwegian Peoples Aid |
| NPAA | Nonprofit Professionals Alumni Association |