The Austrian mezzo-soprano Anja Mittermüller was born in Klosterneuburg in 2003 and received her musical training at the Hanover University of Music under Prof. Dr. Marek Rzepka. She attended master classes with Kammersängerin Brigitte Fassbaender, Margit Fussi, Prof. Claudia Visca, Kammersänger Kurt Equiluz and Robert Holl, Jan Petryka, Sir András Schiff and Maestro Franz Welser-Möst.
Anja Mittermüller has also performed on stage with singers such as Daniela Fally, Michael Schade and Adrian Eröd and has worked with the Tonkünstler Orchestra of Lower Austria. In summer 2021 she made her debut at the Klosterneuburg Opera as “Curra” in Giuseppe Verdi’s “La forza del destino” and a few months later she made her debut at the Vienna Konzerthaus as part of “Musica Juventutis”. She also took part in Schubertiades by Kammersänger Robert Holl and Sir András Schiff at the Vienna Musikverein and the Vienna Konzerthaus. In August 2025, Anja Mittermüller can be seen as Tisbe in Rossini’s “La Cenerentola” at the Bregenz Festival.
In September 2024, she and her duo partner Richard Fu became the youngest artists in history to win the Wigmore Hall/Bollinger International Song Competition.