Sylvie Brunet, known as Sylvie Brunet-Grupposo, is a contemporary French opera singer (mezzo-soprano). Born to a Sicilian father and a French mother, Brunet was hired to sing the title role of Verdi's Aida in Bercy, one of her first professional engagements.

She moved towards the "Falcon" mezzo-soprano repertoire, a type of voice that is not very frequent. She has performed on several international stages and takes part in recordings, notably at Sony, Dynamic, and EMI. Brunet performed Gluck's Iphigénie en Tauride at La Scala of Milan, under the baton of Riccardo Muti, Samson and Delilah at the Teatro Regio of Turin, the title-role of Carmen at the Zürich Opera House, the role of Suzuki in Madame Butterfly at the Paris Opera directed by Bob Wilson, Madame de Croissy in Dialogues des Carmélites at the Paris Opera and the Zürich Opera, Santuzza in Cavalleria Rusticana at the Séville Opera, Marguerite in La Damnation de Faust in Zürich and eventually the title role in Meyerbeer's l'Africaine at the Opéra national du Rhin.