| Acronym | Definition |
|---|
| NSIC➣Northern Sun Intercollegiate Conference (sports) |
| NSIC➣National Small Industries Corporation (India) |
| NSIC➣National Sport Information Centre (Australia) |
| NSIC➣National Scholastic Indoor Championships (track and field competition) |
| NSIC➣National Strategy Information Center (US government) |
| NSIC➣National Storage Industry Consortium |
| NSIC➣Nuclear Safety Information Center |
| NSIC➣National Statistical Information Center |
| NSIC➣Nikon Super Integrated Coating (photography) |
| NSIC➣Naval Security and Investigative Command |
| NSIC➣National Stringed Instrument Corporation |