| Abbreviation | Definition |
|---|---|
| NSV | National Socialist Vanguard |
| NTA | Norwalk Tree Alliance |
| NTK | Naam Tamilar Katchi |
| NTP | National Transformation Party |
| NTUC | National Trade Union Congress |
| NUCD | National Union of Christian Democrats |
| NUDO | National Unity Democratic Organisation |
| NUL | National Urban League |
| NUP | National Unity Platform |
| NUP | New Union Party |
| NUSJ | National Union For Social Justice |
| NWAD | No one Wants Atomic Dumps |
| NWBB | Nationaler Widerstand Berlin-Brandenburg (German: National Resistance Berlin-Brandenburg; political group) |
| NWO | New World Order |
| NWOM | New World Order Model |
| NWP | National Woman`s Party |
| NWPC | National Women's Political Caucus |
| NWSA | National Womens Suffrage Association |
| NYC | Nan Yang Camp |
| NYPP | Nigeria Youth Political Party |