Tradition: Korean Mythology
Alternative Names: Kumiho, Kumiyŏu, Nine-Tailed Fox, Yeou, Bulyeou, Baegyeou, Maegu, Hogwi
Category: Fox
The Myth
The Gumiho is a supernatural fox from Korean mythology, most famously known for its nine tails and its ability to assume human form. It is often portrayed as a beautiful woman or, in some stories, a Buddhist monk, concealing its true nature behind a convincing disguise. Although the Gumiho is commonly depicted as sly, deceptive, and dangerous, not every fox spirit is evil. Some accounts describe foxes that help humans or act as supernatural guardians of the mountains. Korean mythology also includes other fox spirits, such as the Bulyeou, or fire fox; the Baegyeou, or white fox; the Maegu, or fox demon; and the Hogwi, or fox ghost.
Gumiho are frequently portrayed as threatening beings that deceive people and disturb the natural and divine order. In some tales, they oppose dragons, which are revered as sacred creatures that protect the kingdom. While dragons represent divine protection and stability, fox spirits may bring disorder, misfortune, and even the downfall of a kingdom. Certain legends describe foxes defeating multiple dragons, demonstrating that these creatures possess supernatural powers formidable enough to challenge even mighty divine beings. Despite their dangerous reputation, their extraordinary abilities make them more than ordinary animals, and some traditions portray them as beings with powers comparable to those of dragons.
Fox spirits are also associated with mountain passes and other places believed to be haunted by supernatural creatures. Mountain crossings known as yeougogae, meaning fox pass, are often connected with tales of mysterious foxes and strange encounters. The Gumiho’s reputation extends into everyday language, where the word can describe a sly or cunning person, particularly a woman. Its image therefore combines supernatural danger, deceptive beauty, and extraordinary magical power, making the nine-tailed fox one of the most recognizable creatures in Korean mythology.
Sources
“Gumiho.” Wikipedia: The Free Encyclopedia. Wikimedia Foundation. Accessed October 12, 2026. Section: “Korean Fox Spirit Tales by Period.” https://en.wikipedia.org/wiki/Gumiho#Korean_Fox_Spirit_Tales_by_Period