Ishikawa Akimitsu (石川 昭光, 1550 – August 16, 1622),[1] also known as Kojiro or Jirō (次郎) or by his court title, Yamato no Kami (大和守),[2] was a Japanese samurai of the Sengoku period through early Edo period.

He served the Date clan of Sendai han during the tenure of its lord Masamune.

His siblings included Rusu Masakage and Date Terumune, Masamune's father.

Harumitsu handed over the head of the Mutsu-Ishikawa family to Akimitsu and retired.

In Masamune's service, Akimitsu was acknowledged as chief among the heads of the Date clan's cadet branches, or ichimon-hittō (一門衆筆頭).