NGS
- GNS (disambiguation)
- GSN (disambiguation)
- NASDAQ
- NG (disambiguation)
- NGS (Russian digital mass media outlet)
- NGSO
- NSG (disambiguation)
- Nagasaki Airport
- National Galleries of Scotland
- National Garden Scheme
- National Genealogical Society
- National Geographic Society
- National Gramophonic Society
- National Grid Service
- Naval General Service Medal (1847)
- Naval General Service Medal (1915)
- Naval General Service Medal (disambiguation)
- Naval Gunfire Support
- Neutral grain spirit
- Newcastle Grammar School, New South Wales
- Next-generation sequencing
- Ninja Gaiden Sigma
- Nortel Government Solutions
- Novosibirsk
- SGN (disambiguation)
- SNG (disambiguation)
- U.S. National Geodetic Survey