An organic light-emitting display device includes a plurality of pixels on a substrate, and input pads coupled to the plurality of pixels through wirings, the input pads being connected to a circuit board, wherein each of the input pads includes an extension portion extending from a respective wiring, a connection portion separated from the extension portion by a predetermined distance and connected to the circuit board, a resistance portion contacting the extension portion and the connection portion, and a dummy portion on the resistance portion and contacting the connection portion, the dummy portion being insulated from the extension portion.