Machiko Satonaka (里中 満智子, Satonaka Machiko, born 24 January 1948) is a Japanese manga artist. She made her professional debut in 1964 during her second year of high school with the one-shot Pia no Shōzō ("Portrait of Pia"). She has since created nearly 500 manga in a variety of genres. Two of her most notable works are Ashita Kagayaku ("Tomorrow Will Shine"), which won the 1974 Kodansha Publishing Culture Award,