Makino Tadamasa (牧野 忠雅, December 2, 1799 – November 30, 1858) was a Japanese daimyō of the Edo period.

[3] Tadamasa served as the Tokugawa shogunate's forty-eighth Kyoto shoshidai in the period spanning February 15, 1840, through December 23, 1843.

[1] Tadamasa held a variety of positions in the Tokugawa shogunate, including rōjū.

A staunch supporter of Abe Masahiro, when Tadamasa became a rōjū, he was placed in charge of organizing coastal defenses.

He resigned shortly after Hotta Masayoshi replaced the recently deceased Abe; Tadamasa himself died the following year.