Torii Tadamasa (鳥居 忠政, 1567 – October 2, 1628) was the first lord (daimyō) of Iwakitaira Domain in Japan's Mutsu Province, worth 100,000 koku, in 1603.
In 1622, he was moved to the larger fief of Yamagata in Dewa Province, worth 260,000 koku.
This article incorporates text from OpenHistory.