Rachel Yakar (born March 3, 1938) is a French soprano.

Yakar was born in Lyon, France. She studied for Germaine Lubin at the Paris Conservatoire. In 1963, she made her debut at Strasbourg. For the next twenty years, she was associated with the Deutsche Oper am Rhein in Düsseldorf. In the mid and late 1970s, she performed at Bayreuth, Glyndebourne, Edinburgh, Salzburg and Covent Garden. Her repertory included Mozart's "Donna Elvira" from "Don Giovanni", and "First Lady" from "The Magic Flute"; Monteverdi's "L'incoronazione di Poppea" and Rameau's Aricia; Jean-Baptiste Lully's "Climène" from "Phaëton", Leclair's Circé in Scylla et Glaucus; Arthur Honegger's "Diane" from "Les aventures du roi Pausole" and Francis Poulenc's "Madame Lidoine" from "Dialogues of the Carmelites".