Matsuda Hideharu (or possibly Naohide (直秀)—opinions differ) was the second son of Matsuda Norihide. He served Houjou Ujinao and reported the betrayal of his father and older brother during the Siege of Odawara. He followed Ujinao to exile on Mt. Kouya after the fall of the Houjou; after Ujinao's death, he served the Kaga-Maeda Clan.