HC

HC, hc or H/C may refer to:

Medicine

 * Health Canada
 * Hemicrania continua
 * Hyperelastosis cutis or hereditary equine regional dermal asthenia

Chemistry

 * Hemocyanin, a metalloprotein abbreviated Hc
 * HC smoke, a US military designation for Hexachloroethane
 * Homocapsaicin, a capsaicinoid
 * Hydrocarbon, a category of substances consisting only of hydrogen and carbon

Other uses in science, technology, and mathematics

 * 74HC-series integrated circuits, a logic family of integrated circuits
 * Felix HC, a series of Romanian personal microcomputers produced by ICE Felix Bucharest and which were ZX Spectrum clones
 * Hemianthus callitrichoides, a freshwater aquatic plant native to Cuba
 * + h.c., a notation used in mathematics and quantum physics

Sports

 * Head Coach
 * Hors catégorie (French), used in cycle races to designate a climb that is "beyond categorization"
 * UCI .HC road cycling races (1.HC and 2.HC), the second tier of events in the sport, after the UCI World Tour

Other uses

 * Heritage Corridor, a Metra commuter rail line running from Chicago to Joliet, Illinois
 * Highway contract route, an outsourced United States Postal Service delivery method, formerly known as Star routes
 * Honorary degree, or honoris causa
 * Hors de commerce, prints similar to Artist Proofs except they are only available through the artist directly
 * Hospitality Club, an internet-based hospitality service
 * Houston Chronicle, newspaper of record of Houston, Texas
 * Aero-Tropics Air Services (IATA airline designator HC)
 * Disability, acronym for Handicap/Handicapped
 * High-cube container, a type of intermodal shipping container