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-shotPia no Shōzō (lit. "Portrait of Pia"). She has since created nearly 500 manga in a variety of genres. Two of her most notable works are Ashita Kagayaku (lit. "Tomorrow Will Shine"), which won the 1974 Kodansha Publishing Culture Award, and Karyūdo no Seiza (lit. "Constellation of the Hunter"), which won the 1982 Kodansha Manga Award. In addition to creating manga, Satonaka teaches at the Osaka University of Arts as the head of the Character Creative Arts Department and serves on the board of various manga-related organizations in Japan.
Machiko Satonaka was born on 24 January 1948 in Osaka, Japan. As a child, her elementary school banned students from reading manga such as Astro Boy because of its violent and unscientific content; her teachers even burned manga in front of her class. Satonaka—who admired the works of Osamu Tezuka, Shotaro Ishinomori, Tetsuya Chiba, and Hideko Mizuno—was filled with a desire to "protect manga" and to "contribute to raising its status" in society by becoming an artist herself.