| Abbreviation | Definition |
|---|---|
| NASCOD | International Conference on Numerical Analysis of SemiCOnductor Devices and Integrated Circuits |
| NASF | National Asylum Support Forum |
| NASS | National Adventure Sports Show |
| NATC | North American Taiko Conference |
| NAUC | National AIDS Update Conference |
| NAUC | National HIV/AIDS Update Conference |
| NBFF | National Baby Food Festival |
| NBSC | National Black Sisters Conference |
| NBTC | National Business and Technology Conference |
| NCA | National Confectioners Association |
| NCAC | North Coast Athletic Conference |
| NCAC | Northern California Athletic Conference |
| NCAD | National Conference of Academic Deans |
| NCAD | National Conference on Addiction Disorders |
| NCAI | National Conference on Artificial Intelligence |
| NCAI-18 | Eighteenth National Conference on Artificial Intelligence |
| NCANT | National Conference on Antennas |
| NCAR | National Conference on the Advancement of Research |
| NCBC | National Conference of Bankruptcy Clerks |
| NCBM | National Conference of Black Mayors |