| Acronym | Definition |
|---|
| NSS➣National Speleological Society |
| NSS➣Network Security Services |
| NSS➣National Space Society |
| NSS➣National Stationery Show (trade show) |
| NSS➣National Security Strategy |
| NSS➣Name Service Switch |
| NSS➣Natural and Social Sciences (various schools) |
| NSS➣National Security Solutions (disabled veteran business) |
| NSS➣National Secular Society (UK) |
| NSS➣National Service Scheme (India) |
| NSS➣Not Sold Separately |
| NSS➣New Senior Secondary (education; Hong Kong) |
| NSS➣Network Security Solutions |
| NSS➣National Student Survey |
| NSS➣Norton Security Scan (software) |
| NSS➣Novell Storage Services |
| NSS➣National Spatial Strategy (Ireland) |
| NSS➣National Sample Survey (India) |
| NSS➣Novell Storage System |
| NSS➣Non Stop Systems |
| NSS➣Network Storage Server |
| NSS➣Network Service Selector |
| NSS➣National Security Systems |
| NSS➣No Slow Start |
| NSS➣Non Stop Server |
| NSS➣Network Storage Systems |
| NSS➣Network Subsystem |
| NSS➣Net Shield Security |
| NSS➣Native Structured Storage |
| NSS➣Namespace Specific String |
| NSS➣National Security Service (various countries) |
| NSS➣Nuclear Science Symposium |
| NSS➣New Social Science (pickup artist community) |
| NSS➣Network Security Scanner |
| NSS➣National Security Space |
| NSS➣Network Support Service |
| NSS➣National Security System |
| NSS➣Nadja Salerno-Sonnenberg (violinist) |
| NSS➣Not So Sure |
| NSS➣National Screen Service |
| NSS➣National Search and Rescue Secretariat (Canada) |
| NSS➣Network Server System |
| NSS➣Northern Sound System (Australia) |
| NSS➣National Statistical Service |
| NSS➣National Secondary School (various locations) |
| NSS➣Non-State Sector (South Africa) |
| NSS➣Nair Service Society (Kerala, India) |
| NSS➣National Sculpture Society |
| NSS➣Native Spanish Speaker |
| NSS➣North State Symphony (California) |
| NSS➣Network Switching Subsystem |
| NSS➣Not Statistically Significant |
| NSS➣Network System Support |
| NSS➣Normal Saline Solution |
| NSS➣National Settlement Services (various locations) |
| NSS➣National Statistical System (Uganda Bureau of Statistics) |
| NSS➣New Skies Satellite |
| NSS➣Neutral Salt Spray (corrosion testing) |
| NSS➣National Social Service |
| NSS➣National Service Standards |
| NSS➣Natural Science Section (various organizations) |
| NSS➣Nutritional Surveillance System |
| NSS➣Negotiation Support System |
| NSS➣No Such Street (postal term) |
| NSS➣National Standards System (Canada) |
| NSS➣NASA Safety Standard |
| NSS➣National Shelter System (US FEMA and American Red Cross) |
| NSS➣Nodal Switching System |
| NSS➣Naval Simulation System |
| NSS➣Neil Squire Society (Canada) |
| NSS➣Nice Skate Shoes (shoe brand) |
| NSS➣Network System Security |
| NSS➣Network System Security (US Navy program) |
| NSS➣National Sentinel Surveillance (UK) |
| NSS➣Nature Society of Singapore |
| NSS➣Native Seeds/SEARCH |
| NSS➣Native Structured Storage (Microsoft Windows 2000) |
| NSS➣New Statesman and Society (journal) |
| NSS➣North Safari Sapporo (zoo; Hokkaido, Japan) |
| NSS➣Networked Systems Survivability |
| NSS➣Neurological Severity Score |
| NSS➣Network Storage Services (data storage technology) |
| NSS➣National Seed Service (Nigeria) |
| NSS➣New Student System (Maricopa County, AZ community college system project) |
| NSS➣National Senior Showcase (lacrosse) |
| NSS➣National Standards Sampling (education) |
| NSS➣Named Saved System |
| NSS➣Network Support System |
| NSS➣Non-Slip Shoulder Strap |
| NSS➣Network Surveillance System |
| NSS➣Nielsen Syndication Service |
| NSS➣Nair Social Society (Canada) |
| NSS➣Non-Standard Setup |
| NSS➣National Severe Storms Forecast Center (National Weather Service) |
| NSS➣Naval Security Station |
| NSS➣NetShield Security (Mcafee) |
| NSS➣Navigation Safety System |
| NSS➣Network and System Services |
| NSS➣Network Synchronization Subsystem |
| NSS➣National Stockpile Site |
| NSS➣Navigation Sonar System |
| NSS➣Navy Supply System |
| NSS➣Nomad Sound System (band) |
| NSS➣Network-based Security Services |
| NSS➣Network Synthesis System |
| NSS➣Naval Support Station |
| NSS➣National Sculptor Society |
| NSS➣Namibia Scientific Society |
| NSS➣NetWare Server Support |
| NSS➣National Specialty Services, Inc. (a Cardinal Health company) |
| NSS➣Near Space Systems, Inc (Colorado Springs, Colorado) |
| NSS➣National School System |
| NSS➣Naval Surface Strike |
| NSS➣National Supply System |
| NSS➣NISI Security Subpanel |
| NSS➣Navy Support Software |
| NSS➣Nazrul Smriti Sangsad (Bangladesh) |
| NSS➣New Start Study |
| NSS➣Neutral Salt Solution |
| NSS➣National Support Specialist |
| NSS➣Nerang State School (Queensland, Australia) |
| NSS➣Network Solutions Service |
| NSS➣New Secret Service (Polish computer magazine) |
| NSS➣Navy Strategic Study |
| NSS➣Northern Site Services Ltd (UK building firm) |
| NSS➣Network Service Subsystem |
| NSS➣No Stuff, Sherlock (polite form) |
| NSS➣National Self Storage Inc. (Tucson, AZ) |
| NSS➣No Service Scheduling |
| NSS➣Nightfall Security Solutions, LLC |
| NSS➣No Surprise Sherlock (polite form) |
| NSS➣Ninth Symphony Syndrome |
| NSS➣Net Suction Specific Speed |