| Abbreviation | Definition |
|---|---|
| NSHP | National School Health Policy |
| NSHS | Nanuet Senior High School |
| NSHS | New School High School |
| NSHS | Newman Smith High School |
| NSHS | Newton South High School |
| NSHS | North Salem High School |
| NSHS | North Sanpete High School |
| NSHS | North Scott High School |
| NSHS | North Shore High School |
| NSHS | North Springs High School |
| NSHS | North Stafford High School |
| NSIF | Nike School Innovation Fund |
| NSIS | New Sathorn International School |
| NSIT | National School Improvement Tool |
| NSJD | Neenah Joint School District |
| NSL | Nashville School of Law |
| NSL | National School League |
| NSM | New School of Mogul |
| NSMR | Nonpublic School Membership Report |
| NSMS | New School for Music Study |