John Richard Riedling (born August 29, 1975) is a former Major League Baseball pitcher.
Riedling was drafted by the Cincinnati Reds in the 22nd round of the 1994 Major League Baseball Draft. His major league debut occurred on August 30, 2000. Riedling played for the Long Island Ducks of the independent Atlantic League in 2007. Riedling is currently a baseball instructor and has also worked with Expert Village.