A composition for an acoustic wave probe, containing the following ingredients (A) to (D): (A) a linear polysiloxane having a vinyl group; (B) a linear polysiloxane having two or more Si-H groups in a molecular chain; (C) a polysiloxane resin; and (D) surface-treated silica particles having an average primary particle diameter more than 16 nm and less than 100 nm, as well as, a silicone resin for an acoustic wave probe, an acoustic wave probe, an ultrasound probe, an acoustic wave measurement apparatus, an ultrasound diagnostic apparatus, a photoacoustic wave measurement apparatus, and an ultrasound endoscope, using the composition for an acoustic wave probe.
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