HHC may refer to:
Organizations Hai Ha Confectionery, confectionery company in Vietnam Headquarters and headquarters company (United States), a type of military unit in the U.S. Army Hendricks Holding Company, privately held conglomerate in Beloit, Wisconsin Hilton Hotels Corporation, the former entity of Hilton Worldwide Holdings Inc. in the United States Hip Hop Congress, an organization encouraging the growth of hip hop culture Hispanic Health Council, a Latino social well-being organization Hungarian Helsinki Committee, a non-governmental human rights organization based in Budapest, Hungary HipHopCanada, a hip-hop publishing company based in Toronto, Canada
Structures Harlem Hospital Center, public teaching hospital affiliated with Columbia University New York City Health and Hospitals Corporation, a public hospital and clinic group in New York City
Other uses Hague Hijacking Convention, the convention for suppression of unlawful seizure of aircraft. HHC Hardenberg, a Dutch football club Hexahydrocannabinol, a cannabinoid derivative Hereditary hemochromatosis, a genetic mutation that causes iron accumulation Hill hold control, a mechanism used to assist start-up of automobiles on inclines Hip Hop Connection, hip-hop magazine