Minamoto no Yoshiie (源 義家; Japanese pronunciation: [mʲi.na.mo.to no (|) jo.ɕiꜜ.i.e], 1039 – 4 August 1106), also known as Hachimantarō Yoshiie (八幡太郎義家) and his title Most Valorous Warrior in the Land (天下第一武勇之士), was a Minamoto clan samurai of the late Heian period, and Chinjufu-shōgun (Commander-in-chief of the defense of the North).
The first son of Minamoto no Yoriyoshi, he proved himself in battle with the Abe clan in the Zenkunen War (Former Nine Years' War) and the Kiyohara clan in the Gosannen War (Later Three Years' War). Subsequently, he became something of a paragon of samurai skill and bravery. Oe no Masafusa was his teacher for the art of war. He was the third generation leader of the Kawachi Genji.