GUG

Gug or GUG may refer to:


 * Avianca Guatemala, a defunct Guatemalan airline
 * Gay until graduation
 * Girls Under Glass, a German musical group
 * Guarani language
 * Gugulethu, a township in the Western Cape, South Africa
 * Madeleine Gug (1913–1971), French film editor
 * Valine, encoded by codon GUG
 * Gugs, creatures in H. P. Lovecraft's novella The Dream-Quest of Unknown Kadath