| Abbreviation | Definition |
|---|---|
| NAP | News Agent Provider |
| NARTB | National Association of Radio and Television Broadcasters |
| NAS | Needle Arts Studio |
| NASCAR | National Association for Stock Car Auto Racing |
| NASH | News About Software Hardware |
| NATGEO | NATional GEOgraphic |
| NATO | National Association of Theatre Owners |
| NATPE | National Association of Television Program Executives |
| NATTKE | National Association of Theatrical, Television, and Kine Employees |
| NAWW | National Association of Women Writers |
| NB | News Bulletin |
| NB | No Broadcast |
| NB | Note Bene |
| NBA | New Book Announcement |
| NBA | No Broadcasts Available |
| NBC | National Broadcasting Company |
| NBC | Nightmare Before Chrismas |
| NBFF | Newark Black Film Festival |
| NBG | Nikkei Board Guide |
| NBH | Next Big Hit |