NSN

NSN may refer to:

Computing

 * Network Service Name, for accessing a databases in Oracle Net Services
 * Nokia Solutions and Networks, a subsidiary of Nokia Corporation

Government, military and politics

 * National Security Network, an American foreign-policy think tank
 * NATO Stock Number, on military supply equipment
 * New Schools Network, a British education reform group
 * Native Sovereign Nation, in the United States
 * National Socialist Network, an Australian neo-Nazi organisation

Other uses

 * Nelson Airport (New Zealand), by IATA code
 * North Shore Navigators, a wooden-bat, collegiate summer baseball team based in Lynn, Massachusetts
 * Never Shout Never, an American indie rock band