Lou Criger (born February 3, 1872 in Elkhart, Indiana, died May 14, 1934 in Tucson, Arizona) was a Major League Baseball player for the Cleveland Spiders (1896-1898), St. Louis Cardinals (1899-1900), Boston Americans (1901-1908), St. Louis Browns (1909, 1912), and the New York Highlanders (1910).
Criger was the catcher for most of Cy Young's 511 victories. He also caught every inning for eight games with Boston in the first-ever World Series in 1903, helping his team win the championship.
In a 16-season career, he batted .221 with 11 home runs and 342 RBIs. Criger stole 58 career bases and scored 337 runs. He had 709 career hits in 3202 at bats.