| Abbreviation | Definition |
|---|---|
| NMKP | Nepal Majdoor Kisan Party |
| NMKP | Nepal Mazdoor Kizan Party |
| NMPP | National Movement of Progressive Party |
| NMPPO | No More Phony Politicians |
| NMRW | North Mecklenburg Republican Women |
| NMSP | New Mon State Party |
| NMT | Nooit Meer Taxen |
| NNDP | Naga National Democratic Party |
| NNDP | Nigerian National Democratic Party |
| NNPP | New Nigeria Peoples Party |
| NNWFO | Northern Nevada Women for Obama (political support group) |
| NOB | Narodno Oslobodilacka Borba |
| NOC | National Organic Coalition |
| NOL | Nation Of Legacy |
| NOLS | National Organisation of Labour Students |
| NOMF | Nominations Papers Filed |
| NOMI | NOMinations Papers Issued |
| NOMN | NOMination |
| NOP | National Opinion Poll |
| NOPC | Nation of Political Conservatives |