Guillermo Anzorena was born in Mendoza, Argentina. He studied Voice at the Conservatory of Music at the National University of Cuyo. In 1991, he was a prize winner in the vocal competition "Young Voices" in Buenos Aires. In 1993, he was named "Young Talent of the Year" by the Richard Wagner Society. Various scholarships allowed him to work intensively with German Lied in Argentina.
Since 1994, Guillermo Anzorena has lived in Karlsruhe, where he completed his postgraduate studies at the Musikhochschule Conservatory of Music as well as in the Opera School. His engagements as an opera singer have led him to the Konstanz Opera Summer and the Young Opera Stuttgart. CD and radio recordings, with the SWR and the Young Opera Stuttgart among others, accompany his solo career. He has recorded several song cycles by Carlos Guastavino and performs works by contemporary Argentinian composers in international concerts as a member of the Ostinato Foundation.
Guillermo Anzorena has been a member of the Neue Vocalsolisten Stuttgart since 2000. Numerous concert tours with the ensemble have taken him all over the world. He sang the main role in a NVS world premiere production of the opera Si by Roberto Andreoni in Bergamo, Italy. Since October 2000 he has been an instructor of Voice at the Hochschule für Kirchenmusik in Tübingen.