| Acronym | Definition |
|---|
| NNAC➣National Network of Assessment Centres (UK) |
| NNAC➣Noord Nederlandse Aero Club (Dutch: Northern Dutch Aero Club; amateur pilots club) |
| NNAC➣Northern Neck Anglers Club (Heathsville, VA) |
| NNAC➣Neutral and Non-Aligned Countries |
| NNAC➣Newport News Arts Commission (Newport News, VA) |
| NNAC➣National Nurses Advisory Council for Liver Wellness and Viral Hepatitis (Silver Spring, MD) |