| Acronym | Definition |
|---|
| NSK | Nippon Seiko KK (Tokyo, Japan) |
| NSK | Nihon Shinbun Kyokai (Japan Newspaper Publishers & Editors Association) |
| NSK | Network Session Key |
| NSK | Network Starter Kit |
| NSK | Non Stop Kernel |
| NSK | Nature of Scientific Knowledge |
| NSK | Nonstop Kernel (Compaq Operating System) |
| NSK | Noril'sk (Russia) |
| NSK | North Side Kings (band) |
| NSK | Neue Slovenische Kunst (German: New Slovenian Art; art collective) |
| NSK | Not Specified By Kind |
| NSK | Nacionalna i Sveucilisna Knjiznica (Croatian: National and University Library; Zagreb, Croatia) |
| NSK | Narrowband Shift Keying |
| NSK | North Star Kids (band) |
| NSK | Norrtulls Sportklubb (sports club, Stockholm, Sweden) |