Nihon-ji is a Buddhist temple in the city of Kyonan, Chiba Prefecture, Japan. The temple is located on the slopes of Mount Nokogiri and is known for its Nihon-ji Daibutsu. Nihon-ji was established as a Hossō sect temple, was transferred to the Tendai sect, and is now a Sōtō Zen temple. Since its founding the temple has fallen into ruin and been revived numerous times.