Mark Franklin Corey (born November 16, 1974) is an American former baseball pitcher.

He played in Major League Baseball for the New York Mets, Colorado Rockies, and Pittsburgh Pirates.

[2] As his graduating class had only 18 students, he relied on the American Legion to play baseball.

In June 2002, Corey suffered a seizure after he and Mets teammate Tony Tarasco smoked marijuana outside of Shea Stadium.

At the time of his retirement, he had pitched in a combined 81 major league games for the Mets, Colorado Rockies, and Pirates.