Donald Leigh Nicholas (October 30, 1930 — October 23, 2007) was an American professional baseball player who played from 1948 to 1959. Initially a shortstop in minor league baseball, then an outfielder, Nicholas received two brief trials in the Major Leagues with the 1952 and 1954 Chicago White Sox as a pinch hitter and pinch runner. The native of Phoenix, Arizona, batted left-handed, threw right-handed, stood 5 feet 7 inches (1.70 m) tall and weighed 150 pounds (68 kg).