Teresa Żylis-Gara (23 January 1930 – 28 August 2021) was a Polish operatic soprano who enjoyed a major international career from the 1950s through the 1990s.

She made her stage debut at the Opera Krakowska in 1958 in the title role of Moniuszko's Halka, and later recorded Chopin's Polish songs and songs by Karol Szymanowski. After achieving 3rd prize at the ARD International Music Competition in 1960, she became an ensemble member of the Oper Dortmund and the Deutsche Oper am Rhein. She was recognised internationally when she appeared at the Glyndebourne Festival in 1965 in the title role of Der Rosenkavalier, alongside Montserrat Caballé, and two years later as Donna Elvira in Mozart's Don Giovanni. From 1970, she was a long-time member of the Metropolitan Opera in New York City, where she appeared in leading roles including Desdemona in Verdi's Otello, and Puccini's Mimì, Liù and Manon Lescaut. She performed a broad repertoire both on stage as in concert and recital, adjusting flexibly to music from different periods. Her unique voice was described as "both bright and substantial, which means that she can convey the intensity of emotion". She was awarded honorary doctorates, the Order of Polonia Restituta, the Legion of Honour, and a sculpture in a public Polish park.