An ultrasonic probe in which a balance between basic performance and suppression of heat generation is achieved by suppressing heat generation of the ultrasonic probe without degrading sensitivity and relative bandwidth of the ultrasonic probe in transmission and reception of ultrasonic waves. The ultrasonic probe includes at least one vibrator for transmitting and receiving ultrasonic waves, the at least one vibrator including a piezoelectric material in which a piezoelectric strain constant d33 is equal to or less than 500 pm/V and a product of the piezoelectric strain constant d33 and a piezoelectric voltage constant g33 is equal to or more than 7000×10−15 m2/N, at least one acoustic matching layer provided on a first surface of the at least one vibrator, and a backing material provided on a second surface opposite to the first surface of the at least one vibrator.