| Abbreviation | Definition |
|---|---|
| NSOG | New Society of the Genesee |
| NSOG | Niagara Society of Obstetricians and Gynecologists |
| NSPB | National Society for the Prevention of Blindness |
| NSPB | National Society to Prevent Blindness |
| NSPCC | National Society for Prevention of Cruelty to Children |
| NSPCC | National Society for the Prevention of Cruelty to Children |
| NSPCC | National Society of Prevention of Cruelty to Children |
| NSPE | Nebraska Society of Professional Engineers |
| NSPI | Nevada Society of Private Investigators |
| NSPI | Nevada Society of Professional Investigators |
| NSPS | New Salem Philanthropic Society |
| NSPS | Nova Scotia Paramedic Society |
| NSPW | National Society of Pottery Workers |
| NSS | National Sculpture Society |
| NSSA | Neutron Scattering Society of America |
| NSSE | National Society for the Study of Education |
| NSSR | Norwegian Society for Sea Rescue |
| NSSS | Northville Students Secret Society |
| NSTC | National Society of TB Clinicians |
| NSTS | National Surgical Teaching Society |