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