A semiconductor package includes a semiconductor chip on a package substrate, a heat spreader on the semiconductor chip, a molding layer, an adhesive film between the semiconductor chip and the heat spreader, and a through-hole passing through the heat spreader. The heat spreader includes a first surface and a second surface. The molding layer covers sidewalls of the semiconductor chip and the heat spreader and exposes the first surface of the heat spreader. The adhesive film is on the second surface of the heat spreader.