Kōriki Masanaga

In this Japanese name, the surname is Kōriki.

Kōriki Masanaga (高力こうりき 正ただし長ちょう, 1558 – June 14, 1599) was a Japanese daimyō 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.