In Algonquian folklore, the wendigo or windigo is a cannibal monster or evil spirit native to the northern forests of the Atlantic Coast and Great Lakes Region of both the United States and Canada.[1] The wendigo may appear as a monster with some characteristics of a human, or as a spirit who has possessed a human being and made them become monstrous. It is historically associated with cannibalism, murder, insatiable greed, and the cultural taboos against such behaviours.[2] The legend lends its name to the disputed modern medical term Wendigo psychosis, which is considered by psychiatrists to be a form of culture-bound syndrome with symptoms such as an intense craving for human flesh and a fear of becoming a cannibal.[3] In some Indigenous communities, environmental destruction and insatiable greed are also seen as a manifestation of Wendigo Psychosis.[4]