Baku Yumemakura (夢枕 獏, Yumemakura Baku, born 1951 in Odawara, Kanagawa) is a Japanese science fiction and adventure writer. His works have sold more than 20 million copies in Japan spread across more than 280 titles. He is published in a variety of formats including feature films, television shows, movies and comic books. He is best known for writing Jōgen no Tsuki wo Taberu Shishi (The Lion that Ate the Crescent Moon), which won both the Seiun Award and the Nihon SF Taisho Award. He also has written film scripts, including the one to Onmyoji.