HEC or hec may refer to:

Math and science

* Habitable Exoplanets Catalog * HEC syndrome, a medical condition characterized by hydrocephalus, endocardial fibroelastosis and cataracts * Highly emetogenic chemotherapy, a term for chemotherapy drugs associated with a high incidence of chemotherapy-induced nausea and vomiting * Hyperelliptic curve, a particular type of algebraic curve * Hyperinsulinemic euglycemic clamp, a test to measure insulin resistance * Hydroxyethyl cellulose, a gelling and thickening agent derived from cellulose

Organizations

* Hautes Études Commerciales (disambiguation), French language business schools in Francophone countries * Higher Education Commission (disambiguation) * Hongkong Electric Company * Hotel Ezra Cornell, Cornell Hotel School student-run Hospitality Leadership Conference * Hydro Tasmania, previously known as the Hydro-Electric Commission * Hyundai Engineering (HEC), a Korean firm founded in 1974

People

Nickname

* Hec Clouthier (born 1949), Canadian Member of Parliament * Hec Crighton (fl. 1952–1986), Canadian Hall-of-Fame high school football coach * Hec Cyre (1901–1971), Canadian-born National Football League player * Hector Dyer (1910-1990), American sprinter * Hec Edmundson (1886–1964), American basketball coach * Hec Fowler (1892–1987), Canadian ice hockey player * Art Garvey (1900-1973), American National Football League player * Hec Gervais (1934–1997), Canadian curler * Hec Highton (1923–1985), Canadian National Hockey League player * Hector Hogan (1931-1960), Australian sprinter * Hec Kilrea (1907–1969), Canadian National Hockey League player * Hec Lalande (1934–2010), Canadian National Hockey League player * Hector Lépine (1897-1951), Canadian National Hockey League player * Hector Pothier (born 1954), former Canadian Football League player * Hector Waller (1900-1942), Royal Australian Navy captain * Hec Yeomans (1895-1968), Australian rules footballer

Given name (presumed)

* Hec Davidson (1908–1976), former Australian rules footballer * Hec McKay (fl. 1904–1935), Australian rules footballer * Hec Oakley (1909–1998), Australian cricketer

Other uses

* Hollerith Electronic Computer, Britain's first mass-produced business computer * Header Error Control, a method used in some telecommunication protocols * HDMI Ethernet Channel, technology that consolidates video, audio and data streams into a single HDMI cable * the title character of ''Hec Ramsey'', a television Western (1972–1974) * Heckington railway station, England; National Rail station code HEC * HEC-meeting, the Heart of Europe Bio-Crystallography Meeting * Human equivalent concentration {{Disambiguation, given name Lists of people by nickname