Frederick Augustus "Duke" Klobedanz (June 13, 1871 – April 12, 1940) was an American pitcher in Major League Baseball.

[2] If married life hurt his pitching, then it is not evident from the statistics because that season he won a career-high 28 games,[3] batted a robust .377, and led the Indians to their third consecutive pennant.

[7] His ERA was mediocre, but he was aided by the powerful Boston offense which provided league-leading run support;[8] Klobedanz himself batted .324 that season.

In 2004, baseball analyst Bill James wrote that Klobedanz had the second-luckiest pitcher season of all-time.

At age 38, Klobedanz was still pitching complete games and it was reported that, "to one who remembers him nine or ten years ago,...he seems as fit as ever.