Danse du Diable Vert (Dance of the Green Devil) is a work by the Spanish cellist and composer Gaspar Cassadó (1897-1966). Cassadó was a pupil of the famous Pablo Casals and is one of the most important cellists of the 20th century. In addition to his career as a performer, he also created a large number of works for cello, including solo pieces, chamber music and transcriptions.