| Abbreviation | Definition |
|---|---|
| NBS | National Bibliophile Society |
| NBS | National Broadcasting Society |
| NBS | National Building Society |
| NBS | Numismatic Bibliomania Society |
| NBTS | National Brain Tumor Society |
| NCAS | National Civic Art Society |
| NCAS | North Carolina Archaeological Society |
| NCBS | National Counties Building Society |
| NCC | Nederlandse Corrosie Centrum |
| NCC | Netherlands Corrosion Centre |
| NCC | Northwest Coast Culture |
| NCDS | Nassau County Dental Society |
| NCDS | Northern California Dental Society |
| NCHS | Nebraska Children's Home Society |
| NCLS | Northern California Lindy Society |
| NCMS | North Carolina Medical Society |
| NCRPS | Negril Coral Reef Preservation Society |
| NCRPS | North Carolina Recreation and Park Society |
| NCS | National Cartoonists Society |
| NCS | National Cycling Society |