In demonology, Glasya-Labolas is a mighty President (and Earl to other authors) of Hell who commands thirty-six legions of demons. He is the author and captain of manslaughter and bloodshed, tells all things past and to come, knows all sciences, gains the minds and love of friends and foes causing love among them if desired, incites homicides and can make a man invisible.
He is depicted as a dog with the wings of a griffin.
Other spellings: Caacrinolaas, Caassimolar, Classyalabolas, Glassia-labolis, Glasya Labolas.