Wakisaka Yasuharu , sometimes referred to as Wakizaka Yasuharu, was a daimyō of Awaji Island who fought under a number of warlords over the course of Japan's Sengoku period.

The Battle of Shizugatake took place during the Sengoku period of Japan between Toyotomi Hideyoshi and Shibata Katsuie in Shizugatake, Ōmi Province over a period of two days beginning on the 20th day of the fourth month of Tenshō 11. Katsuie supported Oda Nobutaka's claim as successor of Oda Nobunaga in a succession dispute within the Oda clan that benefitted Hideyoshi.