| NSS | Nair Service Society 
| Others |
| NSS | Name Service Switch
| Others |
| NSS | Name Service Switching
| Others |
| NSS | Named Save Segment
| Others |
| NSS | Namespace Specific String
| Others |
| NSS | Namibia Scientific Society
| Others |
| NSS | Nanakaland Space Ship
| Others |
| NSS | Nascar Strictly Stock
| Others |
| NSS | Nashville Software School
| Others |
| NSS | Nashville Super Speedway
| Others |
| NSS | National Sample Survey
| Others |
| NSS | National Screen Service
| Others |
| NSS | National Search and Rescue Secretariat
| Others |
| NSS | National Search and Rescue Supplement
| Others |
| NSS | National Security Service
| Others |
| NSS | National Security Strategy
| Government, Military, Defence, Policy |
| NSS | National Security Studies
| Others |
| NSS | National Security System
| Others |
| NSS | National Security Systems
| Others |
| NSS | National Service Scheme
| Others |
| NSS | National Services Scotland
| Others |
| NSS | National Settlement Service
| Others |
| NSS | National Shelter System
| Others |
| NSS | National Slovak Society
| Others |
| NSS | National Space Society
| Others |
| NSS | National Spatial Strategy (Ireland)
| Others |
| NSS | National Speleological Society
| Others |
| NSS | National Standards Strategy
| Others |
| NSS | National Standards System
| Others |
| NSS | National Stationery Show
| Others |
| NSS | National Streamflow Statistics
| Others |
| NSS | National Student Survey
| Others |
| NSS | National Super Series
| Others |
| NSS | National support schools
| Others |
| NSS | Native Structured Storage
| Others |
| NSS | Natural and Social Sciences
| Others |
| NSS | NATURAL Security System
| Others |
| NSS | Navy Standardized Score
| Others |
| NSS | Necklace Sterling Silver
| Others |
| NSS | Nephron-Sparing Surgery
| Others |
| NSS | Nero Start Smart
| Others |
| NSS | Net Shield Security
| Others |
| NSS | Netware Storage Service
| Others |
| NSS | Netware Storage Services
| Others |
| NSS | Network and Security Solutions
| Others |
| NSS | Network and Switching Subsystem
| Others |
| NSS | Network Security Scanner
| Others |
| NSS | Network Security Service
| Others |
| NSS | Network Security Services
| Others |
| NSS | Network Service Selector
| Others |
| NSS | Network Solutions Sector
| Others |
| NSS | Network Storage Server
| Others |
| NSS | Network Storage Systems
| Others |
| NSS | Network Subsystem
| Others |
| NSS | Network Supervisory System
| Others |
| NSS | Network System Security
| Others |
| NSS | Networks Systems and Security
| Others |
| NSS | Neurologic Severity Score
| Others |
| NSS | Neutral Safety Switch
| Others |
| NSS | Neutral Salt Spray
| Others |
| NSS | Neutron Spectrometer System
| Others |
| NSS | New Sectional Standard
| Others |
| NSS | New Senior Secondary
| Others |
| NSS | New Skies Satellites
| Others |
| NSS | New Smyrna Speedway
| Others |
| NSS | New Statesman Society
| Others |
| NSS | New Student Services
| Others |
| NSS | Newburgh and South Shore Railway
| Others |
| NSS | Nice Skate Shoes
| Others |
| NSS | Nintendo Sega Sony
| Others |
| NSS | Nishiboric Suspension System
| Others |
| NSS | Nissan Safety Shield
| Others |
| NSS | Nissan Sonar Suspension
| Others |
| NSS | Nitrogen Supply Subsystem
| Others |
| NSS | No S***, Sherlock
| Others |
| NSS | No Sh*t Sherlock
| Others |
| NSS | No Slow Start
| Others |
| NSS | Nodal Switching System
| Others |
| NSS | Nodo Sensore Sterzo
| Others |
| NSS | Noel Stefan Stoyanoff
| Others |
| NSS | Non Stop Server
| Others |
| NSS | Non Stop Systems
| Others |
| NSS | Non Struck Side
| Others |
| NSS | Non-Self-Sustaining
| Others |
| NSS | Normal Saline Solution
| Others |
| NSS | Normal Size and Shape
| Others |
| NSS | Norman The Slithering Snake
| Others |
| NSS | Northern Secondary School
| Others |
| NSS | Northern Speech Services
| Others |
| NSS | Norton ScreenSaver module (NC - NDW Screen Saver)
| Others |
| NSS | Norton Security Scan
| Others |
| NSS | Norton Security Standard
| Others |
| NSS | Norton Security Suite
| Others |
| NSS | Norton Smartphone Security
| Others |
| NSS | Norton Speed Start
| Others |
| NSS | Nostalgia Super Stock
| Others |
| NSS | Not So Serious
| Others |
| NSS | Not Statistically Significant
| Others |
| NSS | Notification Subscription Server
| Others |
| NSS | Novell Storage Service
| Others |
| NSS | Novell Storage Services
| Others |
| NSS | Novell Storage System
| Others |
| NSS | NTRU Signature Scheme
| Others |
| NSS | Nuclear Safety Solutions, Limited
| Others |
| NSS | Nuclear Science Symposium
| Others |
| NSS | Nuclear Security Summit
| Others |
| NSS | Nutrition Support Services
| Others |
| NSS | Nyingma Summer Seminar
| Others |