Tanjō-ji is a Buddhist temple of the Nichiren Shū located in the city of Kamogawa in Chiba Prefecture, Japan. Along with Kuon-ji in Yamanashi Prefecture, Ikegami Honmon-ji in the south of Tokyo, and Seichō-ji also in Kamogawa City, Tanjōji is one of the "Four Sacred Places of Nichiren Shū."