L'incantesimo is a short opera in one act by Italian composer Italo Montemezzi. Its libretto was written by playwright Sem Benelli who had previously collaborated with the composer on his most famous opera, L'amore dei tre re. Benelli finished the text in 1933, and Montemezzi started work on the score, but the composer's unpleasant relationship with Mussolini's government made Italy inconducive to creative work. Montemezzi resumed work on L'incantesimo during the summer of 1943 in Beverly Hills, his home during a 10-year sojourn in the United States. Upon completion of the score, he offered it to the NBC Symphony, professing admiration for their orchestra.

L'amore dei tre re is an opera in three acts by Italo Montemezzi. Its Italian-language libretto was written by playwright Sem Benelli who based it on his play of the same title.