Mignon Dunn (born June 17, 1928 in Memphis, Tennessee) is a leading American dramatic mezzo-soprano and voice teacher. Born in Memphis, Dunn grew up in Tyronza, Arkansas and Memphis, Tennessee. She studied voice with Karen Branzell and Beverley Peck Johnson.She made her official debut, in the title role of Carmen, on September 8, 1955, with the Experimental Opera Theatre of America/New Orleans Opera Association, with Norman Treigle in his first Escamillo, conducted by Renato Cellini, and directed by Armando Agnini.