An organic light emitting display apparatus minimizes brightness reduction and power consumption increase, and can remove motion blurring. The organic light emitting display apparatus includes a plurality of pixels, each including an organic light emitting device and a pixel circuit, a data driving unit to apply a data signal to data lines connected to the pixels, a scan driving unit to apply a selection signal to selection scan lines connected to the pixels, an emission signal generating unit to generate a first emission signal, an emission duty controlling unit to calculate basic information to reduce motion blurring and to generate an emission duty control signal based on the basic information, a logic gate to output a second emission signal by receiving the first emission signal and the emission duty control signal, and an emission driving unit to apply the second emission signal to emission scan lines connected to the pixels.