Minamoto no Mitsunobu

Minamoto no Mitsunobu (c. 1093–1145), also called Toki Mitsunobu and the Tosa Lieutenant, was a late Heian warrior and eldest son of Dewa governor Minamoto no Mitsukuni. He served retired emperors Shirakawa and Toba as Northern Guardsman and Kebiishi, counted among the Four Warriors of Toba's court.

In 1130 two men posing as the dead Minamoto no Yoshichika fought outside his Kyoto mansion; Mitsunobu raided ex-regent Fujiwara no Tadazane's residence and killed one, for which he was exiled to Tosa. Pardoned in 1143, he died in 1145.