Mélanie Hélène Bonis, known as Mel Bonis (21 January 1858 – 18 March 1937), was a prolific French late-Romantic composer. She wrote more than 300 pieces, including works for piano solo and four hands, organ pieces, chamber music, mélodies, choral music, a mass, and works for orchestra. She attended the Paris Conservatoire, where her teachers included Cesar Franck, Ernest Guiraud, and Auguste Bazille.