Shinji Mizushima (水島 新司, Mizushima Shinji?, born April 10, 1939 in Niigata, Niigata Prefecture, Japan) is a Japanese manga artist. He is best known as an author of baseball manga, such as Yakyū-kyō no Uta, Dokaben, and Abu-san. He is a two-time recipient of the Shogakukan Manga Award.