Bonna Søndberg (born 17 August 1933) is a Danish former operatic soprano and singing educator.
[1] In 1955, Søndberg had her debut role on stage singing mezzo as the housekeeper Marcellina in The Marriage of Figaro by Wolfgang Amadeus Mozart.
[2][3] She was kept busy with other roles such as Ariadne in Richard Strauss' Ariadne auf Naxos, Elizabeth in Tannhäuser by Richard Wagner, Dido in Henry Purcell's Dido and Aeneas, Iphigenia in Iphigénie en Tauride by Christoph Willibald Gluck, Leonora in Verdi's The Troubadour and Alice Ford in Falstaff.
[1][2] She received offers to sing on stage in foreign cities such as Bayreuth, London and New York but she rejected each and every one of them in that period of time.
[2] In 1959, Søndberg performed a number of songs in the collection Das Marienleben with the German composer Paul Hindemith and the Royal Danish Opera.
Søndberg's final theatrical roles included Magdelone in Maskarade by Carl Nielsen and as Leokadja Begbick in Kurt Weill's Rise and Fall of the City of Mahagonny.