Ashikaga Mochiuji (足利持氏, 1398–1439) was the Kamakura-fu's fourth Kantō kubō during the Muromachi period (15th century) in Japan. During his long and troubled rule the relationship between the west and the east of the country reached an all-time low. Kamakura was finally attacked by shōgun Ashikaga Yoshinori and retaken by force. Mochiuji and his eldest son Yoshihisa killed themselves to escape capture.