An organic light emitting diode (OLED) display includes: a substrate; a scan line on the substrate, extending in a first direction, and configured to transmit a scan signal; a data line on the substrate, extending in a second direction crossing the first direction, and configured to transmit a data voltage; a common voltage line in the same layer as the data line and configured to transmit a common voltage; a first electrode on the data line and an assistance member on the common voltage line, the first electrode and the assistance member being separated from each other in the first direction or the second direction; a second electrode on the first electrode and the assistance member; and an organic emission layer between the first electrode and the second electrode. The assistance member is separated from the data line in the first direction.