Ryūkō-ji (龍口寺) is a temple of the Nichiren Shū in the city of Fujisawa, Kanagawa Prefecture, Japan. It stands on the site of the former Tatsukuchi (or Tatsunokuchi) Execution Grounds, and its name uses the same two kanji meaning "dragon mouth"(龍口). It was here that Nichiren, namesake of the Buddhist sect, was to have been executed, but was spared. It was founded in 1337 by Nippō, a disciple of Nichiren. Major buildings at the temple include a hondō (main hall), a five-story pagoda, a stupa (sharitō), and the Shichimendō. The cave where Nichiren was confined is preserved on the grounds. A statue of him stands in the courtyard in front of the hondō. Ryūkō-ji is a short walk from Enoshima Station on the Enoshima Electric Railway, and from Shōnan-Enoshima Station on the Shonan Monorail.

On the grounds