| Abbreviation | Definition |
|---|---|
| NSA | Natsionalna Sportna Akademiya |
| NSA | Nippon Students Association |
| NSA | Nursing Students Association |
| NSAA | National Student Assistance Association |
| NSAC | Nuclear Science Advisory Committee |
| NSAID | National Students Against Impaired Driving |
| NSB | National Science Bowl |
| NSC | Ntid Student Congress |
| NSCAD | Nova Scotia College of Art and Design university |
| NSCI | Natural Sciences |
| NSDU | National Skill Development University |
| NSF | Not Sufficient Faculty |
| NSG | Nursing |
| NSI | Network For Student Information |
| NSI | The Neurosciences Institute |
| NSJAI | New Said Jamaluddin Afghan Institute |
| NSLC | National Student Leaders Conference |
| NSMU | North Sichuan Medical University |
| NSO | New Students Orientation |
| NSOU | Netaji Subhas Open University |