Kōriki Masanaga

Kōriki Masanaga (高力正長^?, 1558 – June 14, 1599) was a Japanese daimyo of the Azuchi-Momoyama period, who ruled the Iwatsuki Domain. Masanaga, like his father Kiyonaga, served the Tokugawa clan.

Masanaga died in 1599, and was succeeded by his son Tadafusa.