| Abbreviation | Definition |
|---|---|
| NNAS | National Nursing Assessment Service |
| NNCAE | Nigerian National Council for Adult Education |
| NNE | Networking Nuclear Education |
| NNELL | National Network for Early Language Learning |
| NNEST | Non Native English Speaking Teachers |
| NNF | New National Framework for teaching |
| NNN | National Numeracy Network |
| NNTA | Nepal National Teachers Association |
| NNTO | Nepal National Teachers Organisation |
| NNTO | Nepal National Teachers Organization |
| NOA | Northern Ohio Alliance |
| NOAH | Northwestern Oklahoma Area Homeschoolers |
| NOBE | Notice of Basic Eligibility |
| NOBLE | New Opportunities for Better Learning Experiences |
| NOC | National Oceanology Centre |
| NOCE | National Organisation for Civic Education |
| NOCE | North Orange Continuing Education |
| NOCE | Nwafor Orizu College of Education |
| NOCTI | National Occupational Competence Testing Institute |
| NOD | Notice Of Discipline |