An organic light emitting diode (OLED) display includes: a display unit comprising a plurality of data lines, a plurality of scan lines, and a plurality of pixels coupled to corresponding data lines of the data lines and corresponding scan lines of the scan lines; a scan driver configured to supply a plurality of scan signals to the scan lines; a data driver configured to: output a plurality of first data signals among a plurality of data signals through a plurality of first output lines among a plurality of output lines, output a plurality of second data signals among the data signals through the first output lines, and output a plurality of third data signals among the data signals through a plurality of second output lines among the output lines, wherein the first data signals represent a first color, the second data signals represent a second color, and the third data signals represent a third color; and a data distribution unit configured to: transmit the first data signals to a plurality of corresponding first data lines among the data lines according to a first clock signal, transmit the second data signals to a plurality of corresponding second data lines among the data lines according to a second clock signal, and transmit the third data signals to a plurality of corresponding third data lines among the data lines.