| Acronym | Definition |
|---|
| NNEC➣NATO Network Enabled Capability |
| NNEC➣Network for New Energy Choices (est. 2006; New York) |
| NNEC➣National Nano Engineering Conference |
| NNEC➣Northern Nishnawbe Education Council (Ontario, Canada) |
| NNEC➣Now, Now Every Children (band) |
| NNEC➣National Network Emergency Center |
| NNEC➣Northern New England Conference of Seventh-Day Adventists |
| NNEC➣North Nova Education Center |