Meldon John Wolfgang (March 20, 1890 – June 30, 1947) was an American professional baseball pitcher. He played all or part of five seasons in Major League Baseball for the Chicago White Sox from 1914 to 1918. Wolfgang's best big-league season was his first. He threw nine complete games, including a pair of shutouts, and finished the season with a record of 9–5. He won just six more games over the remainder of his Major League career. Wolfgang did not appear for the White Sox during the 1917 World Series.