| Abbreviation | Definition |
|---|---|
| NSMS | North Saanich Middle School |
| NSMS | North Sanpete Middle School |
| NSMS | North Shore Middle School |
| NSMS | North Shore Montessori School |
| NSMS | North Smithfield Middle School |
| NSMS | North Stanly Middle School |
| NSO | Neighbourhood Schools Officer |
| NSOA | New School of Athens |
| NSOC | National Schools of Character |
| NSOC | New School Of Cooking |
| NSOL | New School Of Lancaster |
| NSOP | New School Of Photography |
| NSP | Neighborhood Schools Program |
| NSPC | New School of Psychotherapy and Counseling |
| NSPC | New School of Psychotherapy and Counselling |
| NSPF | Nevada School Performance Framework |
| NSPI | National School Planners Ireland |
| NSPI | Network of School Planners Ireland |
| NSPP | Natioml School of Public Policy |
| NSPRP | New School Psychotherapy Research Program |