, also known as Ouchi Sakyo-no-Tayu, was a Muromachi period samurai clan head and military leader. Yoshirio was the second son of Ōuchi Hiroyo, and a member of the Ōuchi family which served under Ashikaga Takauji. The Ōuchi became known as the shugo of Suō and Nagato in 1363 for assisting the Ashikaga against many other opponents. Yoshihiro along with his father both also assisted Imagawa Sadayo in his Kyūshū campaign. After Yoshihiro's father died during the year of 1379, Yoshihiro and his brother both became involved into a power struggle. Yoshihiro ended up defeating his brother at Sakariyama in 1380. During the year of 1391, in the name of the shogun, Ashikaga Yoshimitsu, Yoshihiro led an army against the Southern Court adherents in the Capital region. Due to Yoshihiro's actions, Yoshi