An ultrasound probe according to the present invention includes an acoustic matching layer, a plurality of piezoelectric elements, and a structural member. The acoustic matching layer has a sheet-shaped member whose both ends are bonded together by an adhesive to define a cylindrical shape and is configured to adjust acoustic impedance of ultrasound. The plurality of piezoelectric elements is arranged along a circumferential direction on an inner periphery of the acoustic matching layer and configured to emit ultrasound in accordance with an input of an electrical signal and configured to convert ultrasound that has entered from outside, into an echo signal. The structural member has a hollow disc shape, provided on at least one end side in a longitudinal direction orthogonal to the circumferential direction of the acoustic matching layer, and at least a portion of an outer side surface is fixed inside the acoustic matching layer. The structural member has a water repellent portion on the outer side surface such that the water repellent portion faces, in a radial direction, a gap between the both ends of the acoustic matching layer.
