The ultrasound probe includes ultrasound transducers arranged in an array； transmission paths of the reception signals； impedance matching elements connected to the ultrasound transducers, respectively, each being disposed in each of the transmission paths of the reception signals, and each having a respective preset matching frequency. The impedance matching elements have a distribution in which a matching frequency of an impedance matching element becomes higher as an arrangement position of an ultrasound transducer corresponding to the impedance matching element in the array of the ultrasound transducers becomes closer to a center of the array, in order to reduce an influence of transmission/reception angles of ultrasonic waves due to the arrangement position of the corresponding ultrasound transducer in the array.
