Bacchus was the Roman god of fertility, festivals and wine. Often portrayed languishing against a tree trunk that supports a fruiting grape vine, he is sometimes found holding an empty cantharus (wine cup), signifying a successful party or festival. He is also usually portrayed naked to display his youthfulness and vigour.
His name is derived from the Greek word baccos meaning wine. The Ancient Roman often adopted aspects of classical Greek mythology to give their culture credibility. In this case Bacchus is modelled on the ancient Greek god of wine, Dionysis.
The statue can be found within Roman Dining collection at Westmorland Gallery.