| Acronym | Definition |
|---|
| NSSP➣National Shellfish Sanitation Program |
| NSSP➣National Strategy for Suicide Prevention |
| NSSP➣Next Steps in Strategic Partnership (US-India bilateral diplomacy initative) |
| NSSP➣Nava Sama Samaja Party |
| NSSP➣National Security Studies Program |
| NSSP➣National Student Safety Program |
| NSSP➣National Survey of Seismic Protection |
| NSSP➣Nippon Steel & Sumikin Pipe (Japan) |
| NSSP➣National Science Scholars Program (US Department of Education) |
| NSSP➣Non-Standard Special Provisions |
| NSSP➣Network Service Support Point |
| NSSP➣Navy Secondary Stock Point |
| NSSP➣Navy Standard Signal Processor |
| NSSP➣Non-Susceptible Streptococcus Pneumoniae |
| NSSP➣Naval Support System Philadelphia |
| NSSP➣Normal Size, Shape, and Position (medical) |