Ronald Samuel Herbel (January 16, 1938 – January 20, 2000) was an American Major League Baseball pitcher who appeared in 331 games, all but 79 in relief, for the San Francisco Giants, San Diego Padres, New York Mets and Atlanta Braves. A right-hander born in Denver, he was listed as 6 feet 1 inch (1.85 m) tall and 195 pounds (88 kg). Herbel's .029 career batting average is the lowest batting average in Major League history for a player with a minimum of 100 at-bats.