Donald Leroy Landrum (February 16, 1936 – January 9, 2003) was an American professional baseball outfielder, who played in Major League Baseball (MLB) for the Philadelphia Phillies, St. Louis Cardinals, Chicago Cubs, and San Francisco Giants, from 1957 to 1966. During his playing days, he stood 6 feet (1.8 m) tall, weighing 180 pounds (82 kg), while batting left-handed and throwing right-handed.