Ogasawara Nagashige (??? ??, June 5, 1650 – September 19, 1732), also known as Sado-no-kami or Etchu-no-kami, was a Japanese samurai daimyo of the mid-Edo period.The Ogasawara were identified as one of the fudai or insider daimyo clans which were hereditary vassals or allies of the Tokugawa, in contrast with the tozama or outsider clans.