Bonus Eventus ("Good Outcome") was a divine personification in ancient Roman religion. The Late Republican scholar Varro lists
him as one of the twelve deities who presided over agriculture, paired with Lympha, the goddess who influenced the water supply.
The original function of Bonus Eventus may have been agricultural, but during the Imperial era, he represents a more general
concept of success and was among the numerous abstractions who appeared as icons on Roman coins.