The Mount St. Mary's Mountaineers baseball team is a varsity intercollegiate athletic team of Mount St. Mary's University in Emmitsburg, Maryland, United States.

Mount St. Mary's first baseball team was fielded in 1893.

The team plays its home games at Straw Family Stadium in Emmitsburg, Maryland.

Mount St. Mary's has participated in the NCAA Division I baseball tournament once.

Since the Major League Baseball Draft began in 1965, Mount St. Mary's has had 4 players selected.