Honda Tadamoto(本多 忠民; April 12, 1817 – January 29, 1883) was a Japanese daimyō of the late Edo period, who ruled the Okazaki Domain from 1835 during the Tenpō famine. One of his samurai retainers was the father of Shiga Shigetaka.

Preceded byHonda TadatakaLord of Okazaki 1835–1869Succeeded byHonda Tadanao
Preceded byWakisaka Yasuori51st Kyoto Shoshidai 1857–1858Succeeded bySakai Tadaaki