Edith Haller was born in Meran and studied at the Mozarteum in Salzburg, winning first prize in the 2003 Mario Lanza Singing Competition in Filignano. Early engagements in Salzburg, Prague and Ljubljana were followed by a three-year contract with the Municipal Theare in Sankt Gallen, where she remained from 2002 to 2005. Her wide-ranging repertory includes Anna in Nabucco, Desdemona in Otello, Tatyana in Eugene Onegin, the Countess in Le nozze di Figaro, Giulietta in Les contes d'Hoffmann and the title role in Die Czárdásfürstin. Since 2005 she has been a member of the Baden State Theatre in Karlsruhe, where her roles have included Senta in Der fliegende Holländer, Sieglinde in Die Walküre, Elettra in Idomeneo, Agathe in Der Freischütz, Gutrune in Götterdämmerung, Ursula in Mathis der Maler and Desdemona in Otello. Much in demand in the world of opera, she has also been invited to appear as the First Lady in Die Zauberflöte at the Salzburg Festival, as Helmwige in Die Walküre and Gutrune in Götterdämmerung at the Bavarian State Opera in Munich and as Hanna Glawari in Die lustige Witwe at the Vlaamse Opera in Antwerp. During the 2007/8 season Edith Haller made her highly acclaimed début in the title role of Ariadne auf Naxos and was invited to appear with the Bavarian State Opera in Munich and at the New National Theatre in Tokyo.
She made her Bayreuth Festival début as Gutrune in 2006, returning in 2007, 2008 and 2009 as Freia, Helmwige, Third Norn and Gutrune.