HCN may refer to:
Science and mathematics edit
- HCN channel, a cellular ion channel
- Highly composite number, a type of integer
- Hydrogen cyanide, The toxic gas HCN
Transportation edit
- Halcyonair, a Cape Verdean airline
- Headcorn railway station, in England
- Hengchun Airport, in Taiwan
Other edit
- Health Communication Network, an Australian software company
- High Country News, an American newspaper
This disambiguation page lists articles associated with the title HCN.
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