Fra Diavolo, ou L'hôtellerie de Terracine is an opéra comique in three acts by the French composer Daniel Auber, from a libretto by Auber's regular collaborator Eugène Scribe. It is loosely based on the life of the Itrani guerrilla leader Michele Pezza, active in southern Italy in the period 1800-1806, who went under the name of Fra Diavolo.

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.