Chōsokabe Morichika (長宗我部 盛親, 1575 – May 11, 1615) was a Japanese samurai of the Azuchi-Momoyama period through early Edo period. Once the ruler of Tosa Province, his fief was revoked by Tokugawa Ieyasu after the Battle of Sekigahara.
Morichika was the fourth son of Chōsokabe Motochika, the daimyo of the Chosokabe family and vassal of Toyotomi Hideyoshi. As ruler of Tosa Province in 1614 he joined forces with the Toyotomi to defend Osaka Castle against the Tokugawa. He and his sons were beheaded on May 11, 1615, following the defeat of the Toyotomi and Chosokabe forces at the Battle of Tennoji.