Provided are a pixel, a display device including the same, and a driving method thereof. A pixel includes: an organic light-emitting diode including an anode and a cathode, a first transistor configured to provide a driving current flowing through the organic light emission diode, a second transistor configured to provide data to a gate of the first transistor in response to a scan signal, a capacitor configured to maintain a difference between a voltage level of the data and a threshold voltage of the first transistor, and a third transistor configured to: sense a change of the threshold voltage of the first transistor in response to a sensing signal, and transfer a reference voltage to a node coupled to the anode when the sensing signal is enabled, wherein a level of the reference voltage is lower than a threshold voltage of the organic light-emitting diode.