Cécile Simonnet (4 March 1863, Lille – 5 April 1921, Ravières) was a French operatic soprano.
Early life and education: After obtaining a first prize for singing in Lille, she entered the Paris Conservatoire in 1882, graduating in 1884 with first prize in song and opéra-comique as a pupil of Bax.
Career: Simonnet made her debut in Monte-Carlo in January 1885 under the conductor Pasdeloup. Her debut at the Opéra-Comique in Paris followed on 10 September 1885, in the title role of Lakmé. Her repertoire included Philine in Mignon, Mireille, Le Pré aux clercs, and Violetta in La Traviata.
She notably portrayed Rosenn in the premiere of Édouard Lalo's Le roi d'Ys on 7 May 1888. She also created the roles of Angiola in Saint-Saëns' Proserpine and Angélique in Bruneau's Le Rêve.
She was singing the role of Philine in Mignon on the night of the fire at the Salle Favart on 25 May 1887.
Later engagements: Simonnet performed in Nice, Aix-les-Bains, and London (Covent Garden). She was engaged at the Théâtre de la Monnaie in Brussels for the 1894–1895 season.
