Tokugawa Ienari was a Japanese samurai, daimyo and the eleventh and longest-serving shōgun of the Tokugawa shogunate of Japan who held office from 1787 to 1837. He was a great-grandson of the eighth shōgun Tokugawa Yoshimune through his son Munetada (1721–1764), head of the Hitotsubashi branch of the family, and his grandson Harusada (1751–1827).