A piezoelectric fan includes a vibration sheet, piezoelectric elements, a reinforcing sheet having one principal surface bonded to the vibration sheet and the other principal surface bonded to the piezoelectric element, and a fixing sheet. The vibration sheet is fixed to the inside of an electronic device by the fixing sheet which is disposed at one end of the vibration sheet. The total thickness of the reinforcing sheet and a region of the vibration sheet in which the piezoelectric elements are disposed is greater than the average thickness of a region of the vibration sheet in which the piezoelectric elements are not disposed. The coefficient of linear expansion of the vibration sheet is higher than that of the first and second piezoelectric elements. The reinforcing sheet is formed of a material having a coefficient of linear expansion and a modulus of elasticity identical to the vibration sheet.