| Abbreviation | Definition |
|---|---|
| NCHS | Newcastle Community High School |
| NCHS | Newcomer Charter High School |
| NCHS | Normal Community High School |
| NCHS | North Central High School |
| NCHS | North Charleston High School |
| NCHS | North County High School |
| NCHS | Northwest Christian High School |
| NCIS | New Culture in School |
| NCIS | Niner Clinical Immersion School |
| NCL | North Canada Lovers |
| NCMS | New Caney Middle School |
| NCNM | National College of Natural Medicine (Portland, OR) |
| NCS | National Cathedral School |
| NCS | National Cryptologic School |
| NCS | North Country School |
| NCS | Nowra Christian School |
| NCSA | North Carolina School of the Arts |
| NCSAT | Naga City School of Arts and Trades |
| NCSB | National Centre for School Biotechnology |
| NCSC | National Certified School Counselor |