In Japanese folklore, the one-eyed, three-legged umbrella yōkai is called Karakasa-obake.
Karakasa-obake is a transformed umbrella commonly depicted with one eye, a long tongue, and one or more legs. The creature belongs to the broad tradition of tsukumogami, in which old objects acquire life or supernatural character after long use. Its playful appearance has made it one of the most recognizable object yōkai in modern popular culture.
The name combines karakasa, meaning an old-fashioned umbrella, with obake, a term for a ghost or transformed supernatural being. Illustrations are not completely standardized: some versions have a single leg, while others show two or three. This is why descriptions may differ even when they refer to the same umbrella spirit.
Karakasa-obake is sometimes confused with kasa-obake, a closely related naming variant. Bakezōri is a supernatural straw sandal, and chōchin-obake is an animated paper lantern. All are object yōkai, but they represent different household items.