| Abbreviation | Definition |
|---|---|
| NASSO | National Association of Street Schools On-line |
| NATS | Nihon Automotive Technical School |
| NATS | North Avenue Trade School |
| NAZR | Nazareth High School |
| NBAS | New Buffalo Area Schools |
| NBBS | No Bull Business School |
| NBBS | North Bali Bilingual School |
| NBCC | New Brunswick Community College |
| NBCS | New Boston Central School |
| NBCS | Newark Boys Chorus School |
| NBHS | New Bedford High School |
| NBHS | New Beginnings High School |
| NBHS | New Britain High School |
| NBHS | New Brunswick High School |
| NBHS | North Babylon High School |
| NBHS | North Bend High School |
| NBHS | North Bergen High School |
| NBHS | North Brookfield High School |
| NBHS | North Buncombe High School |
| NBIS | North Branford Intermediate School |