| Acronym | Definition |
|---|
| SNG | Sylloge Nummorum Graecorum (Latin; British Academy numismatic research project; UK) |
| SNG | Sit-N-Go (online poker tournament type) |
| SNG | Scottish National Gallery (UK) |
| SNG | Sonda Nasogástrica (Spanish: Nasogastric Tube) |
| SNG | Société Nautique de Génève (French: Geneva Boating Society; Switzerland) |
| SNG | Satellite News Gathering |
| SNG | Slovenská Národná Galéria (Slovak: Slovak National Gallery) |
| SNG | Synthetic Natural Gas |
| SNG | Song File |
| SNG | Special Needs Group (various organizations) |
| SNG | Southern Natural Gas (Birmingham, AL) |
| SNG | Sheyenne National Grassland (Dakota Prairie Grasslands; USFS) |
| SNG | Snapp Norris Group (Salt Lake City public relations agency) |
| SNG | Seward Neighborhood Group (Minnesota) |
| SNG | Super Nailgun (gaming) |
| SNG | Sub-National Government (political science) |
| SNG | Secured Network Gateway |
| SNG | Société Nouvelle de Galvanoplastie (French: Society of New Electroplating) |
| SNG | Société Neuchâteloise de Géographie (French: Neuchâtel Society of Geography; Switzerland) |
| SNG | Shinjuku Nihongo Gakkô (Japanese school) |
| SNG | Schlesinger, Newman, Goldman (Montreal accounting firm) |
| SNG | Sodruschestwo Nesawissimych Gossudarstw (Russian) |
| SNG | Safety Not Guaranteed |
| SNG | Substitute/Synthetic Natural Gas |
| SNG | Social Networking Group |
| SNG | Srpska Nacionalna Garda (Serbian National Guard) |
| SNG | Somalia National Government |
| SNG | Subject-Specific Notability Guideline (Wikimedia Foundation) |