| Abbreviation | Definition |
|---|---|
| MWJ | Microwave Journal |
| N | Nuzlocke |
| NAJ | NAJ Not A Journal |
| NAJ | Not A Journal |
| NAJA | Native American Journalism Association |
| NAJA | Nepalese American Journalist Association |
| NBJ | Nashville Business Journal |
| NBJ | Nevada Business Journal |
| NBJ | Nutrition Business Journal |
| NCJ | National Contest Journal |
| NCJ | North Carolina Journal |
| NCJ | North Coast Journal |
| NDJ | Namibia Development Journal |
| NECN | New England Classical Journal |
| NEJ | Naval Engineers Journal |
| NEJ | New England Journal |
| NEJM | New England Journal of Marketing |
| NEJM | New England Journal of Medicine |
| NERJ | New Electric Railway Journal |
| NFJ | North Florida Journal |