A semiconductor package includes a substrate having a first surface and a second surface opposite to the first surface. A semiconductor chip is on the first surface of the substrate. A passive element is on the second surface of the substrate. The substrate includes a first passive element pad and a second passive element pad that are exposed by the second surface. A dam extends downwardly from the second surface. The dam includes a first dam and a second dam. The passive element is disposed between the first dam and the second dam. The passive element includes a first electrode portion electrically connected to the first passive element pad. A second electrode portion is electrically connected to the second passive element pad.