Susanoo, often referred to by the honorific title Susanoo-no-Mikoto, is a kami in Japanese mythology. The younger brother of Amaterasu, goddess of the sun and mythical ancestress of the Japanese imperial line, he is a multifaceted deity with contradictory characteristics, being portrayed in various stories either as a wild, impetuous god associated with the sea and storms, as a heroic figure who killed a monstrous serpent, or as a local deity linked with the harvest and agriculture. Syncretic beliefs of the Gion cult that arose after the introduction of Buddhism to Japan also saw Susanoo becoming conflated with deities of pestilence and disease.

Kami are the deities, divinities, spirits, mythological, spiritual, or natural phenomena that are venerated in the Shinto religion. They can be elements of the landscape, forces of nature, beings and the qualities that these beings express, and/or the spirits of venerated dead people. Many kami are considered the ancient ancestors of entire clans. Traditionally, great leaders like the Emperor could be or became kami.