| Abbreviation | Definition |
|---|---|
| NSH | National Society for |
| NSHI | National Society of Home Inspectors |
| NSHP | National Society for Hispanic Professionals |
| NSHP | National Society of Hispanic Physicists |
| NSI | Neurological Society of India |
| NSID | National Society of Interior Designers |
| NSID | Nepalese Society of Implant Dentistry |
| NSID | Nordic Society for Invention and Discovery |
| NSID | Nordic Society of Irish Dancers |
| NSIS | Northwest Science and Innovation Society |
| NSJC | Nutrition Society Journal Club |
| NSLS | National Society for Leadership and Success |
| NSLS | National Society of Leadership and Success |
| NSMM | Nordic Society for Medical Mycology |
| NSMR | Norwegian Society of Magnetic Resonance |
| NSMS | National Safety Management Society |
| NSMS | North Shore Multicultural Society |
| NSNC | National Society of Newspaper Columnists |
| NSOA | National Society of Apprentices |
| NSOA | New Society of Anarchists |