The J. J. Sakurai Prize for Theoretical Particle Physics is presented by the American Physical Society at its annual April Meeting, and honors outstanding achievement in particle physics theory. The prize, considered one of the most prestigious in physics, consists of a monetary award, a certificate citing the contributions recognized by the award, and a travel allowance for the recipient to attend the presentation. The award is endowed by the family and friends of particle physicist J. J. Sakurai. The prize has been awarded annually since 1985.