An organic light-emitting display apparatus including a substrate; a first electrode on the substrate; a pixel defining layer on the substrate, the pixel defining layer including an opening exposing a portion of the first electrode and corresponding to a pixel; an organic light-emitting layer disposed on the first pixel electrode in the opening; a second electrode on the pixel defining layer and the organic light-emitting layer; and an auxiliary electrode contacted on the second electrode, disposed on the pixel defining layer.