Kuchisake-onna is a malevolent figure in Japanese urban legends and folklore. Described as the malicious spirit, or onryō, of a woman, she partially covers her face with a mask or other item and carries a pair of scissors, a knife, or some other sharp object. She is most often described as having long, straight, white hands, black hair, pale skin, and otherwise being considered beautiful . She has been described as a contemporary yōkai.

In mythology and folklore, a vengeful ghost or vengeful spirit is said to be the spirit of a dead person who returns from the afterlife to seek revenge for a cruel, unnatural or unjust death. In certain cultures where funeral and burial or cremation ceremonies are important, such vengeful spirits may also be considered as unhappy ghosts of individuals who have not been given a proper funeral.