Chōgaku-ji is a Japanese Buddhist temple of the Kōyasan Shingon-shū sect in the city of Tenri in Nara Prefecture, Japan. It is located within Yamato-Aogaki Quasi-National Park along the Yamanobe no michi, the oldest road in Japan, at the foot of Mt. Ryūō in the Sanuki Mountains. The temple is the fourth of the thirteen Buddhist sites of Yamato, and the nineteenth of the twenty-five Kansai flower temples.