A scan driving circuit and an organic light emitting display using the scan driving circuit are disclosed. The circuit effectively reduces power consumption by removing a flow path of a static current from a stage of each unit. The scan driving circuit is coupled with an input signal line or an output voltage line of a previous stage, and comprises a plurality of stages coupled with a two-phase clock signal input line, a first scan driver sequentially outputs a selection signal and/or a boost signal through the plurality of stages. A second scan driver sequentially outputs an emission signal through the plurality of stages. The first scan driver includes a scan drive unit to output the selection signal, a first boost drive unit to output an odd-numbered boost signal, and a second boost drive unit to output an even-numbered boost signal.