was a daimyo during the Edo period of Japan. He was the sixth son of Tokugawa Ieyasu. He was born in Edo Castle during the year of the dragon (tatsu), and as a child his name was Tatsuchiyo. His mother was , a concubine of Ieyasu. Ieyasu sent the boy to live with a vassal, Minagawa Hiroteru, daimyo of the Minagawa Domain in Shimotsuke Province. A 1987 television show starring Ken Matsudaira dramatized the life of Matsudaira Tadateru. Tadateru was posthumously pardoned in 1984 by Tokugawa Tsunenari, the head of the former shogunal house.