Het

Het or HET may refer to:

Science and technology

Hall-effect thruster, a type of ion thruster used for spacecraft propulsion
Heavy Equipment Transporter, a vehicle in the US Army's Heavy Equipment Transport System
Hobby–Eberly Telescope, an instrument at the University of Texas McDonald Observatory
Human enhancement Technologies, devices for enhancing the abilities of human beings
Heterozygote, a diploid organism with differing alleles at a genetic locus; see zygosity
Hexaethyl tetraphosphate, in chemistry
HET acid, alternate term for Chlorendic acid

Hét, a village in Hungary
Het peoples, or their language
Heterosexuality, sexual attraction to the opposite sex
HighEnd Teen (2008–2017), a former Indonesian magazine
Historical Enquiries Team (2005–2014), a former unit of the Police Service of Northern Ireland
Holocaust Educational Trust, a British charity
HET, IATA code for Hohhot Baita International Airport, in Inner Mongolia, China
HET, former ticker symbol for Harrah's Entertainment, later renamed Caesars Entertainment Corporation, an American hotel and casino corporation
HET, initialism for Hoofdklasse, Eerste klasse, Tweede klasse, the three divisions of Football in the Netherlands
Heth, a letter of many Semitic alphabets
Cyrillic spelling of the Russian word for no, pronounced "Nyet"