Exposition Park (sometimes called Exposition Park III) was a baseball park in Pittsburgh, Pennsylvania from 1890 to circa 1915. It was located on the north side of the Allegheny River across from Pittsburgh's downtown area. Prior to the construction of this version of Exposition Park, two previous ballparks of the same name were similarly situated along the Allegheny. Due to flooding from the nearby river, the three stadiums' exact locations varied somewhat.