HGD

HGD, or hgd, may refer to:

== Medical science == Hymenoptera Genome Database, a resource supporting the genomics of Hymenoptera Homogentisate 1,2-dioxygenase, an enzyme which catalyzes the conversion of homogentisate to 4-maleylacetoacetate 2-hydroxymethylglutarate dehydrogenase (HgD), an enzyme belonging to the family of oxidoreductases