| Abbreviation | Definition |
|---|---|
| NOMS | IEEE Network Operations and Management Symposium |
| NOMS | Network Operations and Management Symposium |
| NORTHCON | IEEE Northwest Technical Applications CONference and Workshops |
| NOTC | National Occupational Therapy Conference |
| NPEC | National Power Electronics Conference |
| NPHC | National Pan Hellenic Conference |
| NPIC | Nation Pork Industry Conference |
| NPIC | National Pork Industry Conference |
| NPLC | New Paltz Leadership Conference |
| NPPC | National Pharmacy Preceptors Conference |
| NPPC | National Property Preservation Conference |
| NPRC | National Patrol Rifle Conference |
| NPRCC | National Patrol Rifle Conference and Competition |
| NPRCC | The Center Mass National Patrol Rifle Conference and Competition |
| NPSC | National Peer Support Conference |
| NPSC | National Power Systems Conference |
| NRC | IEEE National Radar Conference |
| NRC | National Remarketing Conference |
| NRSC | National Radio Science Conference |
| NRVC | National Religious Vocation Conference |