| Abbreviation | Definition |
|---|---|
| NSSS | Nordic Student Singers Summit |
| NSSS | Nordic Student Singers’ Summit |
| NSTC | National Software Testing Conference |
| NTAC | New Tech Annual Conference |
| NTBF | North Texas Book Festival |
| NTC | (Inter)National Telesystems Conference |
| NTC | NAP Training Conference |
| NTC | NASA Teleconferencing CenterNTC |
| NTC | Nonprofit Technology Conference |
| NTC | North Texas Conference |
| NTEC | NATO Training and Exercise Conference |
| NTF | Nordic Test Forum |
| NTHS | National Transgender Health Summit |
| NTMC | National Transportation Management Conference |
| NUIC | Northwest Upstate Illini Conference |
| NVMT | Non-Volatile Memory Technology Conference |
| NWBC | Nordic Wood Biorefinery Conference |
| NWC | National Waterways Conference |
| NWCC | North West Catholic Conference |
| NWMC | New Wilmington Mission Conference |