Emil "Hill Billy" Bildilli (September 16, 1912 – September 16, 1946) was an American professional baseball pitcher who appeared in 41 games in Major League Baseball over all or part of five seasons for the St. Louis Browns (1937–41). A left-hander born in Diamond, Indiana, he was listed as 5 feet 10 inches (1.78 m) tall and 170 pounds (77 kg).