GGT

• Gamma-glutamyltransferase, an enzyme that catalyzes the reaction between a peptide and an amino acid
• Glutathione hydrolase, an enzyme that hydrolyzes glutathione
• A codon for the amino acid Glycine
• Germline gene therapy, to treat genetic diseases

• Gitua language, spoken on New Guinea

• Exuma International Airport, The Bahamas (IATA:GGT)
• Golden Gate Transit, a public transport system in California, U.S.

• Galactolipid galactosyltransferase (GGGT), an enzyme in glycerolipid metabolism

{{Disambiguation}}