Robert Griffin "Bobby" Keppel (born June 11, 1982) is an American former professional baseball pitcher.

[1] Keppel spent parts of six seasons in the team's farm system before signing a minor league contract with the Kansas City Royals.

[1] Keppel made his major league debut on May 25, 2006, eventually starting six games for the club.

[1] In 2008, he played for the Florida Marlins' Triple-A affiliate, the Albuquerque Isotopes and became a free agent at the end of the season.

[2] On January 6, 2010, Keppel agreed to a contract with the Hokkaido Nippon-Ham Fighters in the Pacific League of Nippon Professional Baseball.