The State of Saigyo (Japanese: 西行国, Saigyō-koku), colloquially known as Saigyo (西行, Saigyō), is a sovereign state located in eastern Aphrodite Terra on planet Venus. Beginning as a series of Japanese settlements, the region gained independence in the 2000s. Unique among the Venusian nations, Saigyo is a constitutional monarchy under the Japanese realm.