GLT Golden Lion Tamarin
GLT Global Leadership Team
GLT Gestion Logistique et Transport (French)
GLT Global Technology Center (HSBC, Pune, India)
GLT Green Leaf Threshing (tobacco processing)
GLT Guided Light Transit
GLT Grundlagentraining (German)
GLT Google Language Tools (translation tools)
GLT General Loss Tree
GLT Gay, Lesbian, Transgender
GLT Glucose Loading Test (biology)