Kenneth Frederick Keltner (October 31, 1916 – December 12, 1991) was an American professional baseball player. He played in Major League Baseball as a third baseman from 1937 to 1950, most prominently as a member of the Cleveland Indians where he was a seven-time All-Star player and was a member of the 1948 World Series winning team. He played his final season for the Boston Red Sox.