Semiconductor packages including a substrate, a plurality of first semiconductor chips stacked on the substrate, a second semiconductor chip interposed between the substrate and a lowermost semiconductor chip among the first semiconductor chips, and a supporting member disposed between the substrate and the lowermost semiconductor chip among the first semiconductor chips to support the first semiconductor chips, may be provided. The supporting member may include a passive element such as a capacitor, a resistor, or an inductor. By including the supporting member, the semiconductor packages may achieve a smaller planar size and have an improved tolerance for subsequent interconnections.