Bune is a demon listed in demonological grimoires such the Lesser Key of Solomon (including Thomas Rudd's version, as Bime) Johann Weyer's Pseudomonarchia Daemonum, Jacques Collin de Plancy's Dictionnaire Infernal, and the Livre des Esperitz.
All of these texts describe Bune as a duke who is able to move the dead, make one rich, and answer a variety of questions. as part of an overall claim that the Lesser Key of Solomon was by Solomon and rooted in Mesopotamian mythology.
According to Rudd, Bune is opposed by the Shemhamphorasch angel Haaiah.