Prince Mochihito (以仁王) was a son of Emperor Go-Shirakawa of Japan.

He believed that Taira no Kiyomori had denied him the throne.

He asserted that Kiyomori was causing suffering, despoiling graves and destroying Buddhist Law.

Prince Mochihito set out to punish Kiyomori. His declaration was sent out to many warrior leaders, one of whom was Minamoto no Yoritomo.

Taira troops hunted down Mochihito and eventually killed him and many of his followers.