源为义（1096年（永长元年）－1156年（保元元年）8月17日（7月30日））为平安时代末期的武将，父亲是源义亲，祖父是源义家，源为义在叔父源义忠遭到暗杀后成为河内源氏的栋梁。通称六条判官、陆奥四郎。

因为失去了白河法皇和鸟羽上皇的信任，而辞去了检非违使的职位。后来因为接近摄家藤原忠实和藤原赖长而恢复了原来的势力。获得了从五位下左卫门大尉检非违使的官职，之后他的第八个儿子源为朝因乱行被罢官。在保元之乱中他是崇德上皇一方的主力，因为战败被后白河天皇一方的自己的长子处以死刑。

Minamoto no Tameyoshi(源 為義, 1096 – August 17, 1156) was head of the Minamoto samurai clan during his lifetime, and grandson of Minamoto no Yoshiie; he led the Minamoto in the Hōgen Rebellion. Tameyoshi is also known as Mutsu Shirō(陸奥 四郎).

Though most famous for his involvement in the Hōgen Rebellion, Minamoto No Tameyoshi is also said to have intervened in a number of other conflicts earlier in his life. Around 1113, the ongoing rivalry between the warrior monks of Mii-dera and Enryaku-ji erupted into outright violence in the streets of Kyoto. Though the palace guard mobilized quickly to protect the Emperor, it is said that Tameyoshi, with a handful of mounted samurai, drove the mobs away himself.