A solid electrolytic capacitor includes stacked capacitor elements. Each capacitor element includes: an anode body; a dielectric layer provided on a surface of the anode body and including a plurality of voids; a solid electrolyte layer provided on a surface of the dielectric layer; a cathode body provided on a surface of the solid electrolyte layer; and an insulating layer that includes a portion of the dielectric layer and an insulating resin filling the plurality of voids included in the portion of the dielectric layer, the insulating layer insulating and separating between an anode side and a cathode side, and the insulating layer being provided on the anode side of the dielectric layer. An anode portion adhesive resin is provided between adjacent insulating layers.