Ruža Pospiš-Baldani (Croatian pronunciation: [rǔːʒa pɔ̂spiːʃ baldǎni]; born 25 July 1942) is a Croatian operatic mezzo-soprano. Baldani was born in Varaždinske Toplice and made her professional opera debut in 1961 at the Croatian National Theatre in Zagreb as Konchakovna in Alexander Borodin's Prince Igor. She remained active at that theatre and at the National Theatre in Belgrade throughout the 1960s. In 1965 she made her debut at the Metropolitan Opera in New York City as Maddalena in Giuseppe Verdi's Rigoletto. From 1970-1978 she was committed to the Bavarian State Opera. Between 1973 and 1987 she was a frequent guest artist at the Vienna State Opera; drawing particular acclaim there as Brangäne in Richard Wagner's Tristan und Isolde. In 1976 she made her debut at the Paris Opera as Amn