Fujiwara no Yasuhira (藤原 泰衡) was the forth ruler of Northern Fujiwara in Mutsu Province, Japan, the second son of Hidehira. Against his father's will, he first hid Yoshitune in in escape, but later killed him, fearing the possibility of Yoritomo's intervention. In 1189, however, he was defeated again Yoritomo's forces, and that marked the end of Northern Fujiwara.