An organic light-emitting diode (OLED) display includes pixel electrodes, each pixel electrode corresponding to a pixel region disposed in a display region of a substrate, a first pixel region disposed at a center portion of the display region, a second pixel region disposed at an edge portion of the display region, auxiliary lines, each auxiliary line disposed adjacent to at least one pixel electrode, emission layers disposed on the pixel electrodes, and an opposite electrode disposed on the emission layers, the opposite electrode contacting each of the auxiliary lines through contact holes, wherein a total contact area between the opposite electrode and an auxiliary line in the first pixel region is greater than a total contact area between the opposite electrode and the auxiliary line in the second pixel region.