The god celebrated as the god of wine in both Greek and Roman mythology is Dionysus. Known as Bacchus in Roman tradition, Dionysus is associated with festivity, ecstasy, and the liberating aspects of wine. He embodies the duality of joy and chaos, celebrating both the pleasures and excesses related to wine consumption. Festivals in his honor, such as the Dionysia, involved dramatic performances and communal revelries, reflecting the importance of this deity in ancient cultures. Dionysus is also linked to themes of transformation and rebirth, emphasizing the cycles of nature and human experience.