Leonard Joseph Yochim (October 16, 1928 – May 11, 2013) was a professional baseball pitcher. He played in parts of two seasons in Major League Baseball for the Pittsburgh Pirates in 1951 and 1954, and later served in the organization for almost four decades. Yochim batted and threw left-handed. Besides, he also played in the league for Vargas, Gavilanes and Magallanes, compiling a 29–20 record and a 3.57 ERA in 86 games from 1952 through 1956, while pitching for Caracas in the 1953 Caribbean Series.