In ancient Greek religion and myth, Dionysus is the god of wine-making, orchards and fruit, vegetation, fertility, festivity, insanity, ritual madness, religious ecstasy, and theatre. He was also known as Bacchus by the Greeks for a frenzy he is said to induce called baccheia. As Dionysus Eleutherius, his wine, music, and ecstatic dance free his followers from self-conscious fear and care, and subvert the oppressive restraints of the powerful. His thyrsus, a fennel-stem sceptre, sometimes wound with ivy and dripping with honey, is both a beneficent wand and a weapon used to destroy those who oppose his cult and the freedoms he represents. Those who partake of his mysteries are believed to become possessed and empowered by the god himself.

बैक्कस प्राचीन रोमन धर्म के देवताओं में से एक थे। वो शराब और अंगूर के देवता थे। उनके समतुल्य प्राचीन यूनानी धर्म के देवता थे डायोनाइसस।