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Uwan ( うわん , a spirit named for the sound it shouts when surprising people) from the Hyakkai-Zukan ( 百怪図巻 )

Uwan

In its own language: うわん

A Japanese yōkai with an unknown identity and a loud voice

Historical

Photo: Sawaki Sūshi (佐脇嵩之, Japanase, *1707, †1772), Public domain, via Wikimedia Commons

The uwan is a Japanese spirit depicted in Edo Period art. Its origins are unclear, though it may be linked to noble customs or regional monster names.

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  • Depicted in Edo Period art with three fingers
  • Name may derive from regional monster terms
  • Blackened teeth link it to medieval nobility
  • Tales claim it haunts old temples and homes
  • Scholars doubt the authenticity of many stories

What it is

The uwan is a creature from Japanese folklore classified as a yōkai. It appears in historical illustrations but lacks a clear definition. The figure is shown with grotesque features and three fingers on each hand. It often raises its voice in a threatening manner. Scholars do not know its true nature. Some link it to the oni class of demons due to its digits. Others see it as a generic spirit of abandoned places. Its appearance suggests aggression, yet no text explains its purpose.

Where it comes from

The uwan first appeared in Edo Period artworks. Artists like Sawaki Suushi and Sekien Toriyama included it in their collections. These images show the creature waving its hands. No accompanying text describes its background. One theory links the name to regional terms for monsters. In Kumamoto Prefecture, creatures are called wanwan. In Kagoshima Prefecture, they are called wan. Another idea connects it to walls of deserted homes. The name itself remains unexplained by primary sources.

Tools and materials

The uwan is defined by specific physical traits. It has three fingers on its hands. This detail mirrors the depiction of oni spirits. The figure also displays blackened teeth. This practice was common among medieval nobility and warriors. These visual cues help identify the creature in art. They suggest a connection to human social classes. The lack of other tools emphasizes its mysterious nature.

Uwan, drawn and placed

Emblem With the feather shape. Drawn from this page, not a photograph.
  1. Living
  2. Revived
  3. Fading
  4. Historical
  5. Legendary
  6. Performed
Standing: Historical Documented in the past; no continuous living tradition today. This says whether people still do it, not whether it works.
A feather: used in cleansing and blessing in some traditions, worn as a sign of office, and carried as a charm.
Lineage
yōkai tradition
Where it sits The tradition it belongs to, and when it is done.

What it is for

Stories about the uwan vary widely. Some tales say it lives in old temples. It calls out loudly to startle passersby. If victims repeat its words, the spirit flees. Other accounts describe it haunting abandoned residences. A loud voice prevents people from sleeping. Neighbors cannot hear the noise. Only the residents suffer from the disturbance. These stories serve as cautionary tales about haunted spaces.

Peoples and places

The uwan is part of Japanese folk belief. It appears in regional legends across Japan. Stories mention Aomori Prefecture specifically. Elders there attribute sleeplessness to the spirit. The creature is also linked to broader yōkai culture. Its depiction in art reflects Edo Period interests. Different regions offer varying explanations for its existence. Some view it as a noble ghost. Others see it as a generic household demon.

At a glance: who, where and when

Peoples

What people believe

Belief in the uwan stems from oral traditions and artistic depictions. There is no formal religious doctrine attached to it. People fear its loud voice and strange appearance. Repeating its words is believed to drive it away. This suggests a rule-based interaction with spirits. The blackened teeth imply a connection to past human status. The three fingers link it to demonic hierarchies. These details form a loose framework for understanding the entity.

How scholars and sceptics see it

Researchers question the authenticity of uwan stories. Many tales appear only in modern compilations. Norio Yamada recorded a story from Aomori Prefecture. Critics suggest he invented the narrative. Arifumi Satō wrote a children's book about yōkai. His account of the repeating-word defense lacks primary sources. Scholars suspect these are fabrications rather than historical facts. The creature's ambiguity supports this skepticism.

Compare and confuse

The uwan shares traits with other Japanese spirits. It resembles the oni due to its three fingers. It also parallels ghosts that haunt abandoned houses. Regional variations exist in how monsters are named. Wanwan and wan are similar terms in southern Japan. The uwan stands apart due to its lack of explanation. Most yōkai have clear origins or purposes. The uwan remains an enigma in folklore studies.

Questions people ask about Uwan

What is the uwan?

The uwan is a Japanese yōkai from Edo Period art. It has three fingers and blackened teeth. Its true identity is unknown. It is often shown waving its hands threateningly.

Where does the name come from?

The name might relate to regional terms for monsters. In Kumamoto, they are called wanwan. In Kagoshima, they are called wan. The exact origin remains uncertain.

How can you defeat an uwan?

Some stories say repeating its words makes it flee. This comes from later children's books. Scholars doubt these tales are authentic. No reliable method for defeating it exists.

Good reading and sources

Where this page comes from

The facts on this page come from the Wikipedia article "Uwan", written by its contributors and used under the CC BY-SA 4.0 licence, and from its Wikidata record (CC0). EveryJaadu rewrote the text in its own words, with AI assistance, and compares every page with the article to make sure no passage is copied. It may be reused under the same CC BY-SA 4.0 licence with a link back.

It may contain mistakes. Names and customs differ from one community to the next, and some knowledge is closed to outsiders and left out here. This page describes belief and practice. It does not say that any of it works, it is not a how-to, and it is not medical advice. If something is wrong, tell us. Last refreshed 2026-10-06.

Photo credits on this page

The small pictures above come from Wikimedia Commons under free licences. Some are cropped to fit.

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