A non-contact ultrasonic tonometer for measuring intraocular pressure of an examinee's eye (E) in a non-contact manner by use of an ultrasonic wave comprises: a probe (10) that emits an ultrasonic beam to be allowed to enter the eye and detects the ultrasonic beam reflected by the eye； and an arithmetic section (70) that determines the intraocular pressure by processing an output signal from the probe, the probe including a broadband air-coupled transducer that transmits and receives the ultrasonic beam having a broadband frequency component.
