An organic light-emitting apparatus includes a thin film transistor (TFT) including an active layer, a gate electrode, and source and drain electrodes, an organic light-emitting device including a pixel electrode connected to the TFT, an intermediate layer including an emissive layer, and an opposite electrode, an opposite electrode contact portion connecting the opposite electrode to a power interconnection line. The power interconnection line connected to the opposite electrode contact portion includes a first interconnection layer and a second interconnection layer which are stacked without an insulating layer therebetween.