Kunishi Motosuke (国司 元相, 1492 – February 11, 1592) was a Japanese samurai of the 16th century, who served the Mōri clan.[1][2] The son of Kunishi Arisuke, Motosuke served as a senior retainer of Mōri Takamoto. Motosuke fought with distinction at the Siege of Koriyama. Later, he was chosen as one of the five bugyō of the Mōri clan.