| Acronym | Definition |
|---|
| HNC | Higher National Certificate (UK) |
| HNC | Head and Neck Cancer |
| HNC | Have No Clue |
| HNC | Huddersfield Narrow Canal (UK) |
| HNC | Houma Navigation Canal |
| HNC | Hamilton Naturalists' Club (Ontario, Canada) |
| HNC | Holistic Nurse Certified |
| HNC | Hockey Night in Canada |
| HNC | Honey Nut Cheerios (cereal) |
| HNC | Hopkins-Nanjing Center (US/China joint educational program) |
| HNC | Hypernetted Chain Approximation |
| HNC | Hattori Nutrition College (Tokyo, Japan) |
| HNC | Huntsville Engineering Support Center (Army Corps of Engineers) |
| HNC | Hentai Ninja Clan |
| HNC | Hecht-Nielsen Neurocomputing Corporation |
| HNC | Hazardous Nomad Co-Op (gaming clan) |
| HNC | Hawks Network Corporation |