Nishi Hongan-ji "Western Temple of the Original Vow" is one of two temple complexes of Jōdo Shinshū in Kyoto, Japan, the other being Higashi Honganji, or "Eastern Temple of the Original Vow". Jōdo Shinshū is a school of Pure Land Buddhism, and today Nishi Hongan-ji serves as the head temple of the Jōdo Shinshū organization. As with many sites in Kyoto, they have more casual names, and are known affectionately in Kyoto as Onissan and Ohigashisan.