The Southern Maryland Blue Crabs are an American professional baseball team based in Waldorf, Maryland. They are members of the South Division of the Atlantic League of Professional Baseball, an independent "partner league" of Major League Baseball. Since 2008, the Blue Crabs have played their home games at Regency Furniture Stadium. They represent the counties of Charles, Calvert, and St. Mary's, which are located on the Southern Maryland peninsula between Chesapeake Bay and the Potomac River.