HHC may refer to: Organizations Hai Ha Confectionery, confectionery company in Vietnam Headquarters and Headquarters Company (United States), a company-sized unit of the United States Army Hendricks Holding Company, privately held conglomerate in Beloit, Wisconsin 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 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