Zuirokusan Engaku Kōshō Zenji (瑞鹿山円覚興聖禅寺), or Engaku-ji (円覚寺), is one of the most important Zen Buddhist temple complexes in Japan and is ranked second among Kamakura's Five Mountains. It is situated in the city of Kamakura, in Kanagawa Prefecture to the south of Tokyo.

The Five Mountains and Ten Monasteries System system, more commonly called simply Five Mountain System, was a network of state-sponsored Chan (Zen) Buddhist temples created in China during the Southern Song (1127–1279). The term "mountain" in this context means "temple" or "monastery", and was adopted because many monasteries were built on isolated mountains. The system originated in India and was later adopted also in Japan during the late Kamakura period (1185–1333).