William Edward Kamm was an American professional baseball player. He played as a third baseman in Major League Baseball from 1923 to 1935. Kamm played most of his career for the Chicago White Sox before finishing his playing days with the Cleveland Indians. He was the dominant defensive third baseman in the American League for most of his career.

A third baseman, abbreviated 3B, is the player in baseball or softball whose responsibility is to defend the area nearest to third base — the third of four bases a baserunner must touch in succession to score a run. In the scoring system used to record defensive plays, the third baseman is assigned the number 5.