was a Japanese daimyà  of the Edo period, who ruled the Hiroshima Domain. He was the chamberlain of Aki and held the title of Aki no kami. His childhood name was Iwamatsu (岩æÂ¾).
During the 47 rà Ânin incident, Tsunanaga sent a messenger to Akà Â, which was ruled by a branch family of the Hiroshima Asano, and recommended that à Âishi Kuranosuke peacefully surrender the castle to the shogunate's envoys.
His daughter married the court noble Ichijà  Kaneka.