Yama-arashi is a Japanese Yokai (specter) introduced in books such as a Yokai picture book, "Hyakki Yagyo Emaki" (picture scroll of a hundred specters strolling at night) by Yoshi ODA.
山あらし、山荒（やまあらし）は、尾田淑による妖怪画『百鬼夜行絵巻』などにある日本の妖怪。