Nicolas-Marie d'Alayrac, nicknamed the Musician poet, more commonly Nicolas Dalayrac, was a French composer of the Classical period. Intended for a military career, he made the acquaintance of many musicians in the Parisian salons, which convinced him of his true vocation.

Nina, ou La folle par amour is an opéra-comique in one act by the French composer Nicolas Dalayrac. It was first performed on 15 May 1786 by the Comédie-Italienne at the first Salle Favart in Paris. The libretto, by Benoît-Joseph Marsollier des Vivetières, is based on a short story by Baculard d'Arnaud.