大友氏
, also known as Fujiwara no Yoshishige (藤原 義鎮) and Ōtomo Yoshishige (大友 義鎮), was a Japanese feudal lord ("daimyō") of the Ōtomo clan, one of the few to have converted to Roman Catholicism (Christianity). The eldest son of Ōtomo Yoshiaki, he inherited the Funai Domain, on Kyūshū, Japan's southernmost main island, from his father. He is perhaps most significant for having appealed to Toyotomi Hideyoshi to intervene in Kyūshū against the Shimazu clan, thus spurring Hideyoshi's Kyūshū Campaign of 1587.