| Abbreviation | Definition |
|---|---|
| NCO | Non-Commissioned Officer |
| NCRC | National Career Readiness Certificate |
| NCRCS | National Career Readiness Certificates |
| NCT | Non Certified Technician |
| NCT | Non-Certified Technician |
| NCTM | Nationally Certified Teacher of Music |
| NCW | NACSE (National Association of Communication Systems Engineers) Certified Webmaster |
| ND | Naturopathic Doctor |
| NDET | Network Development Engineer in Test |
| NDSE | New Deal Self-Employment |
| NDST | Non-Dual Status Technician |
| NECA | National Electrical Code Administrator |
| NED | Non-Executive Director |
| NEE | Notice to Employer and Engineer |
| NEO | Named Executive Officer |
| NF | Non-Filled |
| NFA | No Future Advancement |
| NFA | No Future Ambition |
| NFO | Naval Flight Officer |
| NH | New Hire |