| Abbreviation | Definition |
|---|---|
| NBC | News Bodies And Customers |
| NBC | News By Cavaiani |
| NBM | National Business Media |
| NBN | National Broadband Network |
| NBNN | New Britannia News Network |
| NBNN | No Bullshit News Network |
| NBP | National Braille Press |
| NBR | Nightly Business Report |
| NBS | National Bureau of Standards |
| NBSA | News Broadcasting Standards Authority |
| NBSB | No Boyfriend Since Birth |
| NBU | New Brunswick Underground |
| NC | News Commentary |
| NC | News Corporation |
| NCIS | Naval Criminal Investigative Service |
| NCME | National Center for Media Engagement |
| NCME | Northern California Media Educators |
| NCMH | Nairobi Community Media House |
| NCN | News Channel Nebraska |
| NCRM | New Civil Rights Movement |