John Joseph McGraw (April 7, 1873 – February 25, 1934) was an American Major League Baseball (MLB) player and manager who was for almost thirty years manager of the New York Giants. He was also the third baseman of the pennant-winning 1890s Baltimore Orioles teams, noted for their innovative, aggressive play.
McGraw was born into poverty in Truxton, New York. He found an escape from his hometown and a bad family situation through baseball, beginning a quick rise through the minor leagues that led him to the Orioles at the age of 18. Under the tutelage of manager Ned Hanlon, the Orioles of the 1890s won three National League (NL) pennants; McGraw was one of the stalwarts of the team alongside Wee Willie Keeler, Hughie Jennings, and Wilbert Robinson.