Disclosed herein are an apparatus and a method for measuring velocity of an ultrasound signal. The apparatus for measuring velocity of an ultrasound signal according to an exemplary embodiment of the present invention includes a transmitting module transmitting ultrasound signals to targets a receiving module receiving the ultrasound signals reflected from the targets an image generating module using the received ultrasound signals to generate a plurality of ultrasonic images having different sound velocities and a sound velocity determining module using the plurality of generated ultrasonic images to determine optimal sound velocity for scanning the targets.
