Mark Franklin Corey (born November 16, 1974 in Coudersport, Pennsylvania) is a retired American baseball pitcher. He was drafted by the Cincinnati Reds in the 4th round of the 1995 draft.

In 2004, with the Columbus Clippers, the New York Yankees Triple-A affiliate, he went 7-4 with a 4.44 ERA. Corey led the Triple-A with 28 saves in 2005. Corey pitched in the Pittsburgh Pirates organization for their Triple-A affiliate, the Indianapolis Indians, in 2007.

He pitched in a combined 81 games for the New York Mets, Colorado Rockies, and Pittsburgh Pirates.