Oomoto , also known as Oomoto-kyo , is a religion founded in 1892 by Deguchi Nao (1836–1918), often categorised as a new Japanese religion originated from Shinto. The spiritual leaders of the movement have always been women within the Deguchi family; however, Deguchi Onisaburō (1871–1948) has been considered an important figure in Omoto as a seishi. Since 2001, the movement has been guided by its fifth leader, Kurenai Deguchi.

Japanese new religions are new religious movements established in Japan. In Japanese, they are called shinshūkyō (新宗教) or shinkō shūkyō (新興宗教). Japanese scholars classify all religious organizations founded since the middle of the 19th century as "new religions"; thus, the term refers to a great diversity and number of organizations. Most came into being in the mid-to-late twentieth century and are influenced by much older traditional religions including Buddhism and Shinto. Foreign influences include Christianity, the Bible, and the writings of Nostradamus.