Brandon Allen Falker Claussen (born May 1, 1979) is a former Major League Baseball starting pitcher.

[5] On July 31, 2003, he was traded to the Cincinnati Reds with Charlie Manning and cash for Aaron Boone.

[11] He made his final major league appearance on June 16, 2006, and took the loss against the Chicago White Sox.

[13] On August 14, Claussen underwent an operation to repair the rotator cuff and debridement in his throwing shoulder.

This biographical article relating to an American baseball pitcher born in the 1970s is a stub.