Alda Noni ( born April 30, 1916) is an Italian soprano leggiero, one of the leading soubrette of the immediate postwar period. Born in Trieste, she first studied voice and piano in her native city, and completed her studies in Vienna. She made her professional debut in Ljubljana in 1937, as Rosina, later appearing in Zagreb and Belgrade. She sang at the Vienna State Opera from 1942 to 1946, in Mozart, Rossini and lighter Donizetti roles, such as: Susanna, Zerlina, Despina, Adina, Norina. She was chosen by Richard Strauss himself, to sing Zerbinetta in 1944, to celebrate his 80th birthday.