Régine Crespin (23 February 1927 – 5 July 2007) was a French operatic soprano, later a mezzo-soprano, who excelled in both the French and German repertoire.
She made her début in 1950 in Mulhouse as Elsa in Lohengrin, and the same year appeared in that role in Paris. After her debut, she sang with the Paris Opera but in regional centres. Her big break was being chosen as Kundry in Parsifal at the 1958 Bayreuth Festival, despite the fact that she had not sung Wagner in German. To learn the role in German, she was coached by Lou Bruder, a professor of German literature who later became her husband.
Notable subsequent parts added to her repertoire were Cassandre and Didon in Berlioz' Les Troyens; Carmen; Fauré's Pénélope; Gluck's Iphigénie en Tauride; Charlotte in Massenet's Werther; Offenbach's La Grande-Duchesse de Gérolstein; Madame Lidoine and Madame de Croissy in Poulenc's Dialogues des Carmélites; Tosca; the Countess in Tchaikovsky's The Queen of Spades; Kundry in Wagner's Parsifal, and Sieglinde and Brünnhilde in his Die Walküre. Above all, perhaps, she was loved for her Marschallin in Richard Strauss's Der Rosenkavalier.