Masaaki Ikenaga (池永 正明, Ikenaga Masaaki, August 18, 1946 – September 25, 2022) was a Japanese professional baseball player. A right-handed pitcher, he played in Japan for the Nishitetsu Lions. Ikenaga was one of the top pitchers in Nippon Professional Baseball before a scandal derailed his career at age 23. Before being implicated in the Black Mist Scandal, he made five consecutive All-Star teams at the beginning of his career, and was in the top 10 in ERA every season of his career.