The god of wine and revelry in Roman mythology is Bacchus, also known as Dionysus in Greek mythology. He embodies the pleasures of wine, celebration, and ecstasy, often associated with festivity and a break from societal norms. Bacchus represents the transformative power of wine and nature, signifying themes of fertility and transcendence. His myths often explore the duality of joy and chaos, reflecting the complexities of indulgence and its consequences on human behavior.