John Henry Frederick (January 26, 1902 – June 18, 1977) was a Major League Baseball outfielder. He played six seasons for the Brooklyn Dodgers, hitting over .300 for his career. He led off a game with a home run 10 times with the Dodgers, second in franchise history.Frederick began his professional baseball career in 1921 and broke into the majors in 1929. That year, he started off strong at the plate and led the National League with 52 doubles.