Acante et Céphise, ou La sympathie is an opera by Jean-Philippe Rameau, first performed on 19 November 1751 at the Opéra in Paris. It takes the form of a pastorale héroïque in three acts. The librettist was Jean-François Marmontel. The opera was written to celebrate the birth of the Duke of Burgundy, the elder brother of the future King Louis XVI.

Although the plot has been described as "puerile....the plot evokes from Rameau a score of remarkable imagination"; it is richly scored and contains the first surviving use of clarinets in a French opera. They appear in the overture, which contains a section imitating the firework display celebrating the birth of the duke.

While the first presentation of the opera in the UK took place on BBC radio on 21 November 1983, University College Opera (London) gave the opera's UK staged premiere in March 2012 in the Bloomsbury Theatre and one of the first performances in the world since the 18th century.