Lewis William "Sport" McAllister (July 23, 1874 – July 17, 1962) was a professional baseball player. He played seven seasons in Major League Baseball with the Cleveland Spiders (1896–1899), Detroit Tigers (1901–1903), and Baltimore Orioles (1902). He was a versatile switch hitter who played every position during his major league career. He played 147 games in the outfield, 83 at catcher, 65 at first base, 62 at shortstop, 27 at third base, and 7 at second base. He also pitched in 17 games, including 10 complete games.