Luzerne Atwell "Lu" Blue (March 5, 1897 – July 28, 1958) was a Major League Baseball (MLB) first baseman. He played in the major leagues from 1921 to 1932 with the Detroit Tigers, St. Louis Browns, and Chicago White Sox. Blue was a switch-hitter who had a career on-base percentage of .402 and was one of the best fielding first basemen of his era. He interrupted his baseball career for military service in World War I and was later honored with burial at Arlington National Cemetery. In 2001, baseball historian Bill James ranked Blue as the 77th best first baseman of all time.