Eugène Delacroix was always a lover of opera and theater. One of his most admired opera composers was Gioacchino Rossini. This article delves into the operatic and theatrical iconography of Delacroix, about "Othello", based on the original work of Shakespeare and the eponymous opera by Rossini and his librettist, Berio. We have also consulted the "Diaries", as they were the original documents of the French painter. The analyzed pictures are “Desdemona cursed by her father" and "Otello and Desdemona." Finally, we have risked venturing into a general view of both Delacroix’s oils on canvas.