Franziska Rabl fell in love with classical music at a young age, first studying violin, viola, and french horn, and then playing in various youth orchestras and chamber music ensembles. Born into a musical family as a dual citizen of Germany and the United States, she soon knew she wanted to be a musician. She studied voice with Pamela Coburn and Marilyn Schmiege at the Richard-Strauss conservatory in Munich.

The International Opera Studio (IOS) in Zurich, Switzerland, awarded the mezzo soprano a position in 2004/2005, and at the end of the season she was engaged as a soloist by the theater in Dortmund. There, she starred in title roles such as Carmen and Hansel (Hansel and Gretel), but also got in touch with her first Wagner operas, singing Flosshilde and Siegrune in the ring cycle. As a guest star, she has also sung in Montpellier and at the Opéra de Lyon, France, and at many German opera houses.

2010/11 saw Franziska at the Gärtnerplatztheater in her hometown, Munich, as Isabella (L'italiana in Algeri), and Orlovsky (Die Fledermaus). She stayed in Munich for another season as a member of the Gärtnerplatz cast, singing in Fledermaus, Italiana, Die Zauberflöte (2. Dame), Falstaff (Meg Page), L'amour des trois oranges (Clarice), and many more operas.

At the same time, Franziska continued enlarging her fach, and worked her way into the heavier repertoire. While starring in the Belcanto role of Romeo (I Capuleti), she also studied Brangäne (Tristan und Isolde), Venus (Tannhäuser) and Komponist (Ariadne auf Naxos). Being no stranger to Wagner operas, she hugely enjoys immersing herself in the new repertoire.

Franziska Rabl has already performed in a wide range of roles from baroque to contemporary parts, including Dido (Dido and Aeneas), Dorabella (Così fan tutte), Carmen (Carmen), Nicklausse (Les contes d’Hoffmann), Charlotte (Werther), Fricka (Das Rheingold), Hänsel (Hänsel und Gretel), The Secretary (The Consul) and in the world premiere of "Der Herr Nordwind" at the Zurich opera, the role of Frau Holla, the goddess of the North. She sang in Germany's premiere of Charlotte, a contemporary opera about the Jewish painter Charlotte Salomon, the role of Franziska. She sang Indra's daughter at the theater in Hof, where Aribert Reimann's first opera was brought to stage for the first time in thirty years, and was received with great enthusiasm.

In addition, Franziska is a regular on the concert stage, giving song recitals from Dowland to Cole Porter, as well as singing oratorio repertoire from Bach to Verdi. She has sung under the baton of, amongst others, Alexander Soddy, Dan Ettinger, Proinnsías Ó Duinn, Anthony Bramall, Walter E. Gugerbauer, Kazushi Ono, and Arthur Fagen.

Franziska Rabl was a Prizewinner of the "Internationale Sommerakademie Mozarteum" (Salzburg, Austria) and won the Renate-Holm-Operetta award at the Jan-Kiepura-Competition.

She speaks German, English, Spanish, French, Italian, and Swedish.