Okudaira Tadamasa (奥平 忠政, 1580 – August 7, 1614) was a Japanese daimyō of the early Edo period.
He was the son of Tokugawa Ieyasu's daughter Kamehime with her husband, Okudaira Nobumasa.
Due to this family connection, he was allowed to use the Matsudaira surname.
Upon Nobumasa's death, Tadamasa succeeded him as lord of the Kanō Domain.
This biography of a daimyō is a stub.