Kimotsuki Kanemori served as a bushō and daimyō during the Azuchi-Momoyama period.  He was the nineteenth head of the Kimotsuki clan of Ōsumi Province.

In 1561, Kanemori was born as the youngest son of Kimotsuki Kanetsugu, a daimyō in Ōsumi.

In 1574, his older brother, Kimotsuki Kaneaki, yielded allegiance to the Shimazu clan but maintained friendly relations with the Itō clan so was ousted by the formal wives of his deceased father (Kanetsugu) and oldest brother (Kimotsuki Yoshikane) and senior retainers.  Kanemori was sent to another family as an adopted heir but was called back to the Kimotsuki and backed as the successor to the clan.  Owing to these circumstances, Kanemori did not wield real authority and received official recognition of his rights only to Kōyama Castle.  In 1580, his landholdings were transferred from Takayama to Satsuma Province, marking the end of the Kimotsuki clan as a daimyō family.  Thereafter, remaining members of the clan served as retainers of the Shimazu in Satsuma.

In 1600, at the Battle of Sekigahara, he accompanied Shimazu Yoshihiro but was killed after breaking through into the enemy position.  Kanemori was succeeded by his lineal heir, Kimotsuki Kaneyuki, the twentieth and last head of the main branch of the Kimotsuki clan.