Who is known as the Roman god of wine?

Bacchus is recognized as the Roman god of wine, known for his association with viticulture, winemaking, and the ecstatic joy that wine can bring. He embodies the celebratory and liberating aspects of wine, often associated with festivity and merriment. This deity is also linked to fertility, ritual madness, and religious ecstasy, which are commonly represented in various forms of art and literature from Roman times.

Bacchus is the Roman counterpart to the Greek god Dionysus, who shares many attributes and significance in both cultures. Festivals dedicated to Bacchus, such as the Bacchanalia, were lively events that celebrated fertility and the joy of wine. His mythology often involves themes of transformation and the dual nature of wine as both a source of joy and potential chaos.

In contrast, Faunus is a rustic god associated with forest and fields rather than wine. Velvetius does not correspond to any widely recognized Roman deity, and Janus, known for being the god of beginnings, gates, transitions, time, duality, and endings, is unrelated to wine. Thus, Bacchus is definitively the correct answer as the Roman god of wine.