Futarasan jinja is a Shinto shrine in the city of Nikkō, Tochigi Prefecture, Japan. It is also known as Nikkō Futarasan Shrine, to distinguish it from the shrine in nearby Utsunomiya. Futarasan enshrines three deities: Ōkuninushi, Tagorihime, and Ajisukitakahikone. It is located between Nikkō Tōshō-gū and the Taiyū-in Mausoleum. Many visitors go to all three, as well as to Rinnō-ji.
Together with Nikkō Tōshō-gū and Rinnō-ji, it forms the Shrines and Temples of Nikkō UNESCO World Heritage Site. The shrine possesses two swords that are National treasures of Japan. Additionally, dozens of buildings and cultural artifacts are listed as Important Cultural Assets, including the Sacred Bridge.