Silas Kenneth Johnson (October 5, 1906 – May 12, 1994) was an American professional baseball player, a right-handed pitcher who appeared in 492 Major League games pitched over 17 seasons for the Cincinnati Reds (1928–36), St. Louis Cardinals (1936–38), Philadelphia Phillies (1940–43; 1946) and Boston Braves (1946–47). He was born in Danway, near Ottawa, Illinois, and was listed as 5 feet 11 inches (1.80 m) tall and 185 pounds (84 kg). Johnson led the National League in losses in 1931 (19) and 1934 (22). He also led the National League in earned runs allowed (125) in 1934.