Dennis Biddle is a former Negro League professional baseball player who played for the Chicago American Giants. Biddle is most known for making his debut in 1953 as the Giants' pitcher when he was only 17 years old. He is on record as being the youngest player ever to play in a Negro baseball league game. Sadly, Biddle injured his ankle the next year which ultimately ended his playing career. In 1996, Biddle founded Yesterday's Negro League Baseball Players, LLC.