| Abbreviation | Definition |
|---|---|
| SNCA | Society of North Carolina Archivists |
| SND | Society of News Design |
| SNDS | Society for News Design Scandinavia |
| SNDS | Southern Nevada Dental Society |
| SNEHA | Society for Nutrition Education and Health Action |
| SNEHA | Society for Nutrition Education Health Action |
| SNFU | Society Not For Us |
| SNG | Senckenberg Nature Research Society |
| SNG | Senckenbergische Naturforschende Gesellschaft |
| SNHF | National Horticultural Society of France |
| SNHF | Société Nationale d'Horticulture de France |
| SNHF | Socit Nationale d'Horticulture de France |
| SNHS | Spanish National Honor Society |
| SNI | Italian Numismatic Society |
| SNI | Societ Numismatica Italiana |
| SNI | Società Numismatica Italiana |
| SNJ | Japanese Society of Neurology |
| SNJ | Nihon Shinkei Gakkai |
| SNJ | Societas Neurologica Japonica |
| SNLS | Society for Neo Latin Studies |