| Abbreviation | Definition |
|---|---|
| NJSZT | Neumann Jnos Szmtgp-tudomnyi Trsasg |
| N-KCHS/gc | Nobleton-King City Horticultural Society/garden club |
| NKS | Norsk Kjemisk Selskap |
| NKS | Norwegian Chemical Society |
| NKWP | Dutch Political Science Association |
| NKWP | Nederlandse Kring voor Wetenschap der Politiek |
| NLF | Norske Lægeforening |
| NLF | Norske Lgeforening |
| NLF | Norwegian Medical Association |
| NLRS | Northern Lights Radio Society |
| NLS | Negro Logic Society |
| NMA | Nepal Medical Association |
| NMAS | National Museum of Animals Society |
| NMAS | New Mexico Autism Society |
| NMBS | National Merchant Buying Society |
| NMHS | National Maritime Historical Society |
| NMMS | New Mexico Medical Society |
| NMMS | New Mexico Mycological Society |
| NMNH | Nederlandsche Maatschappij voor Nijverheid en Handel |
| NMNH | Netherlands Society for Industry and Trade |