John Joseph McGraw (April 7, 1873 – February 25, 1934), nicknamed "Little Napoleon" and "Mugsy", was a Major League Baseball (MLB) player and manager of the New York Giants. He stood 5 feet 7 inches (1.70 m) tall and weighed 155 pounds (70 kg). He was elected to the Baseball Hall of Fame in 1937. While primarily a third baseman throughout his career, he also played shortstop and the outfield in the major leagues.

John McGraw (born Roy Elmer Hoar or Heir, December 8, 1890 – April 27, 1967) was a Federal League pitcher. McGraw played for the Brooklyn Tip-Tops in the 1914 season. He played just 1 game in his career, pitching in 2 innings, and striking out 2.

John Robert McGraw (January 4, 1912 – June 19, 1976) was a Brigadier general (United States) in the United States Air Force, who served as flight surgeon during World War II.

John McGraw may refer to: