Korean Mythology Creatures: Dokkaebi, Gwisin, Gumiho & More

Korean folklore is full of spirits and creatures — some terrifying, some mischievous, a few oddly lovable. If K-dramas, games, or KPop Demon Hunters sparked your curiosity, here’s a field guide to the most important ones.

Dokkaebi (도깨비)

Often translated as “goblin,” the dokkaebi is a trickster spirit — powerful, mischievous, and not truly evil. They’re said to spring from discarded objects, love games and riddles, and carry a magic club (방망이) that conjures whatever they wish. They reward the good-hearted and punish the greedy. The hit drama Goblin made them famous worldwide.

Gwisin (귀신)

The gwisin is the classic Korean ghost — the spirit of someone who died with unfinished business or a deep grievance (한, han) and so lingers in the world. The white-clad woman with long black hair haunting so many Korean horror films is a gwisin. The character gwi (귀, 鬼) — “ghost, demon” — is the same one behind the demon king’s name in KPop Demon Hunters.

Jeoseung Saja (저승사자)

The jeoseung saja is the messenger of the afterlife — Korea’s grim reaper — who escorts souls from this world (iseung) to the next (jeoseung). Pictured in a black robe and a tall black hat (gat), he is duty-bound rather than evil. The “Saja Boys” of KPop Demon Hunters are a pun on exactly this figure. (More on the film’s folklore)

Gumiho (구미호)

The gumiho is the nine-tailed fox — a fox that has lived a thousand years and gained the power to take human form, usually a beautiful woman. Stories cast her as dangerous, longing to become fully human. Modern K-dramas have softened and reinvented her, but the nine tails endure as one of Korea’s most striking images.

The dragon (용) and imugi (이무기)

The Korean dragon (용, 龍) is a benevolent water deity — bringer of rain, guardian of rivers and seas, a symbol of kings. An imugi is a lesser serpent that must wait, sometimes a thousand years, before it can ascend into a true dragon. The dragon’s prestige is why yong (龍) appears in names like Kwon Ji-yong (G-Dragon). (Idols’ real names)

Helpful spirits: Samsin and the Haetae

• Samsin (삼신) — the grandmother goddess who watches over childbirth and the health of young children; families once set out offerings to her for a safe delivery.
• Haetae / Haechi (해태) — a lion-like beast of justice that can tell right from wrong and wards off fire and disaster. It’s now a mascot of the city of Seoul.

Folklore lives in names too

These creatures aren’t just stories — their imagery threads through Korean art, festivals, and even names, where characters like dragon (龍) carry centuries of meaning. If the mythology drew you in, a name built on the same tradition is a lovely way to carry a piece of it. Here’s how Korean names are made.