| Acronym | Definition |
|---|
| NOSI➣Naval Open Source Intelligence |
| NOSI➣Nonprofit Open Source Initiative (nonprofit organization and software solution cooperation; San Francisco, CA) |
| NOSI➣Nitric Oxide Synthase Inhibition |
| NOSI➣National Online Statistics Interactive (database; Australia) |
| NOSI➣Naval Ordnance Station, Indian Head |