John Gransfield Kling (February 25, 1875 – January 31, 1947) was an American catcher and manager in Major League Baseball for the Chicago Cubs (the Chicago Orphans until 1902), Boston Rustlers and Boston Braves, and Cincinnati Reds.
Kling was the Cubs' starting catcher in the final game of the 1908 World Series, the last championship for the team for 108 years.