Thomas Raymond Mastny (born February 4, 1981) is a former Major League Baseball right-handed relief pitcher.
He stands 6 feet, 6 inches in height and weighs 220 pounds.
Mastny is the only Indonesian-born player in Major League history, although he was raised in Zionsville, Indiana, where he played for Zionsville Community High School.
He made his major league debut with the Indians on July 25, 2006.