Teresa Żylis-Gara (born 23 January 1935 in Landwarów, Second Polish Republic, now Lentvaris in Lithuania) is a Polish operatic soprano who had a major international career during the 1950s through the 1990s. Although chiefly known for her portrayals in operas by Wolfgang Amadeus Mozart, Giacomo Puccini, and Giuseppe Verdi, she sang a broad repertoire that encompassed a wide array of musical periods and languages. In addition to her work on the stage, she has been active as a concert singer and recitalist, and is particularly admired for her interpretations of the works of Bach, Handel, Mozart, and Brahms.