Robert Gerald Miller (July 15, 1935 – May 24, 2022) was an American pitcher in Major League Baseball who played for three different teams during his major league career. During the 1953 season, he was the youngest player in the major leagues, one of only three players who were 17 years old. Born in Berwyn, Illinois, Miller was a left-hander who batted right-handed. He was listed as 6 feet 1 inch (1.85 m) tall and weighed 185 pounds (84 kg).