UGT may mean:

  • União Geral de Trabalhadores, the General Union of Workers (Portugal)
  • Unión General de Trabajadores, the General Workers' Union (Argentina)
  • Unión General de Trabajadores, the General Union of Workers of Spain.
  • Uridinediphosphate-glucuronosyltransferase, a class of enzymes including UGT2B7, UGT1, and UGT1A1.
  • Universal Greeting Time, an Internet Relay Chat convention whereby a person who joins a conversation is greeted "Good morning" and a person who leaves is bidden "Good night", regardless of the time zones of participants. <!-- Source: http://www.total-knowledge.com/~ilya/mips/ugt.html -->