Scott Matthew Olsen (born January 12, 1984) is an American former Major League Baseball pitcher.

Olsen had one win and one loss in five starts, with a 3.98 ERA during the season, but was also later sent to the disabled list with an elbow injury.

Olsen finished the season with a 10–15 record and a 5.81 ERA, the latter of which was the worst among qualified starters in the majors.

[1] With the departure of Dontrelle Willis, Olsen admitted to reporters that he coveted the "pitching ace" role.

[2] On November 11, 2008, he was traded with left fielder Josh Willingham to the Washington Nationals for second baseman Emilio Bonifacio, and minor leaguers right-hander P.J.

[4] Olsen missed the rest of the season following a diagnosis of a left labrum tear following a mid-July start.

[10] On January 27, 2012, Olsen signed a minor league contract with the Chicago White Sox.

On November 12, 2012, Olsen signed a minor league contract with the Texas Rangers organization.