An organic light emitting diode display includes: a substrate including a display area configured to display an image and a peripheral area surrounding the display area; a semiconductor layer at the display area on the substrate; a first gate insulating layer covering the semiconductor layer; a first gate wire on the first gate insulating layer; a second gate insulating layer covering the gate wire; a second gate wire on the second gate insulating layer; an interlayer insulating layer covering the second gate wire and having a contact hole, and a plurality of first dummy contact holes; a data wire on the interlayer insulating layer; a passivation layer covering the data wire; and an organic light emitting diode on the passivation layer and coupled to the data wire, wherein the data wire is coupled with the second gate wire through the contact hole in the interlayer insulating layer.