Der Barbier von Bagdad (The Barber of Baghdad) is a comic opera in two acts by Peter Cornelius to a German libretto by the composer, based on The Tale of the Tailor and The Barber’s Stories of his Six Brothers in A Thousand and One Nights. The first of three operas by Cornelius, the piece was first performed at the Hoftheater in Weimar on 15 December 1858.