Michael "Mike" Raczka (born November 16, 1962) is a former Major League Baseball pitcher. Raczka played for the Oakland Athletics in the 1992 season.
A native of New Britain, Connecticut, Raczka attended the University of New Haven. In 1982 and 1983, he played collegiate summer baseball in the Cape Cod Baseball League for the Yarmouth-Dennis Red Sox. He was selected by the Baltimore Orioles in the 5th round of the 1984 amateur draft.
Raczka made his major league debut for Oakland on August 15, 1992. He appeared in eight games for the Athletics that season, his only major league campaign.