Yacumama (South America) – Sea monster Yacuruna (Indigenous people of the Amazon) – Mythical water people, with backwards heads and feet Yadōkai (Japanese) – Malevolent, nocturnal spirit Yagyō-san (Japanese) – Demon who rides through the night on a headless horse Yaksha (Buddhist, Hindu, and Jainism) – Male nature spirit Yakshi (Keralite) – Vampire Yakshini (Buddhist, Hindu, and Jainism) – Female nature spirit Yakubyō-gami (Japanese) – Disease and misfortune spirit Yale (Medieval Bestiaries) – Antelope- or goat-like animal with swiveling horns Yali (Hinduism) – Lion like creature often symbolic for protecting temples Yallery-Brown (English) – Nature spirit Yama (China, Korea, Japan, Buddhism, including Tibet) – Wrathful god Yama-biko (Japanese) – Echo spirit Yama-bito (Japanese) – Savage, mountain-dwelling humanoid Yama-chichi (Japanese) – Monkey-like mountain spirit Yama-inu (Japanese) – Dog-like mountain spirit Yama-otoko (Japanese) – Mountain giant Yamata no Orochi (Japanese) – Gigantic, eight-headed serpent Yama-uba (Japanese) – Malevolent, mountain-dwelling hag Yama-waro (Japanese) – Hairy, one-eyed spirit Yanari (Japanese) – Spirit which causes strange noises Yaoguai (Chinese) – Animalistic demon or fallen gods Yara-ma-yha-who (Australian Aboriginal) – Diminutive, sucker-fingered vampire Yatagarasu (Japanese) – Three-legged crow of Amaterasu Yato-no-kami (Japanese) – Serpent spirits Yeth hound (English) – Headless dog Yeti (Himalayan) – Mountain bigfoot Yilbegän (Turkic) – Either a dragon or a giant Yobuko (Japanese) – Mountain dwelling spirit Yōkai (Japanese) – Supernatural monster Yomotsu-shikome (Japanese) – Underworld hag Yong – Korean dragon Yōsei (Japanese) – Fairy Yosuzume (Japanese) – Mysterious bird that sings at night, sometimes indicating that the okuri-inu is near You Hun Ye Gui (Chinese) – Wandering ghost Yowie (Australian Aboriginal) – Nocturnal human-ape hybrid, also Yahoo Ypotryll (Heraldic) – Boar-camel-ox-serpent hybrid Yuan Gui (Chinese) – Distressed ghost Yukinko (Japanese) – Childlike snow spirit Yuki-onna (Japanese) – Female snow spirit (Japanese) – Ghost Yuxa (Tatar) – 100-year-old snake that transforms into a beautiful human