Ishikawa Sadamitsu

Ishikawa Sadamitsu (died 1341) was the fourteenth head of the Mutsu Ishikawa clan, based at Shirakawa. During his minority his uncle Tokimitsu held the headship; at his coming-of-age he took a character from the regent Hōjō Sadatoki's name.

In 1335 he defeated Kitabatake Akiie's officer Hirohashi Tsuneyasu at Bababara, and again in 1336 before Yumoto Castle. Having no son of his own, he adopted Yoshimitsu's sons and named the eldest, Akimochi, his heir. He died in 1341.