Yacumama
Yacuruna
Yadōkai
Yagyou-san
Yahweh
Yaksha
Yakshi
Yakubyō-gami
Yale
Yali
Yallery-Brown
Yam (Yamm)
Yama
Yama-biko
Yama-chichi
Yama-inu
Yama-otoko
Yama-uba
Yama-waro
Yamantaka
Yamata no Orochi
Yanari
Yanluo
Yaoguai
Yara-ma-yha-who
Yatagarasu
Yato-no-kami
Yawkyawk
Yelbeghen
Yemọja
Yeomra
Yeth hound
Yeti
Yggdrasil
Ymir
Yōkai
Yomotsu-shikome
Yong
Yosuzume
You Hun Ye Gui
Yowie
Ypotryll
Ysätters-Kajsa
Yu Huang
Yu the Great
Yuan Gui
Yúcahu
Yuki-onna
Yukinko
Yule Lads
Yūrei
Yushamin
Yuxa