CHN
# CHN

CHN may stand for:

* China's country code
   * People's Republic of China's ISO 3166-1 alpha-3 and IOC country code
   * Republic of China's IOC country code 1932–1956, now TPE
* Canadian Health Network
* Cheshunt railway station, Hertfordshire, National Rail station code
* CHN analyzer, measuring carbon, hydrogen, and nitrogen
* City Hindus Network, London, UK
* Anglican religious orders
   * Community of the Holy Name, an Anglican religious order for women in England, Lesotho and South Africa
   * Community of the Holy Name (Australia), an Anglican religious order for women in Australia, unrelated to the English order
* Jeonju Airport, South Korea, IATA airport code
* Chemical formula of hydrogen cyanide and hydrogen isocyanide
* Climate Heritage Network
