Ariodant is an opéra comique in three acts by the French composer Étienne Méhul first performed at the Théâtre Favart in Paris on 11 October 1799. The libretto, by François-Benoît Hoffman is based on the same episode in Ariosto's Orlando Furioso that also inspired Handel's opera Ariodante. The work had a profound influence on the development of Romantic opera, particularly in Germany.

Opéra comique is a genre of French opera that contains spoken dialogue and arias. It emerged from the popular opéras comiques en vaudevilles of the Fair Theatres of St Germain and St Laurent, which combined existing popular tunes with spoken sections. Associated with the Paris theatre of the same name, opéra comique is not necessarily comical or shallow in nature; Carmen, perhaps the most famous opéra comique, is a tragedy.