Ryō Hanmura (Japanese: 半村 良, Hepburn: Hanmura Ryō, October 27, 1933 – March 4, 2002) was a Japanese science fiction, fantasy, and horror author. His name is alternatively transliterated as Ryō Hammura. While he wrote books as Ryō Hanmura his real name was Heitarō Kiyono (清野 平太郎, Kiyono Heitarō). He won the first Izumi Kyōka Prize for Literature for his novel Musubi no Yama Hiroku (産霊山秘録) in 1973. He won the Naoki Prize for his 1975 novel Amayadori (雨やどり). He won also the 1988 Nihon SF Taisho Award.