Dionysos is a French pop band that originated in Valence, Drôme, in 1993; their formation took place at their lycée. The group presents songs in both French and English and has produced six studio albums. They are particularly recognized in France for their surrealism and eccentricity.

Their debut album, Happening Songs, was entirely self-produced and featured lyrics exclusively in English. With their subsequent album The sun is blue like eggs in Winter (also self-produced), Babet joined the band. In 1999, they signed a deal with a major label (the now defunct Trema) and released Haïku, which propelled them into the public eye, largely owing to the success of the single "Coccinelle."

The name of the band comes from the ancient Greek god Dionysus, which in French is Dionysos.