NSIS
Appearance
![](http://upload.wikimedia.org/wikipedia/commons/thumb/9/99/Wiktionary-logo-en-v2.svg/40px-Wiktionary-logo-en-v2.svg.png)
Look up NSIS in Wiktionary, the free dictionary.
NSIS may refer to:
Technology
- National Sheep Identification System, the implementation in Ireland for the identification and registration of ovine and caprine animals
- Network Store Interface Service, a Microsoft Windows service
- Next Steps in Signaling, a former Internet Engineering Task Force working group
- Nullsoft Scriptable Install System, a script-driven Windows installation system
Other uses
- National Security Intelligence Section, of Ireland's Directorate of Military Intelligence
- New Sathorn International School, an international school located in Bangkok, Thailand