George C. Gibson (July 22, 1880 – January 25, 1967), nicknamed Mooney, was a Canadian professional baseball player, coach, scout, and manager. He played in Major League Baseball as a catcher from 1905 to 1918, most prominently for the Pittsburgh Pirates where he played the bulk of his career and was a member of the 1909 World Series winning team. Gibson spent the final two years of his career as a player-coach for the New York Giants. He later became a minor league manager for the Toronto Maple Leafs before returning to the major leagues as a manager for the Pirates and the Chicago Cubs.