Josephine Evangeline de la O, known as Eva de la O, (January 19, 1931 — May 4, 2019) was a Nuyorican soprano singer and director of Música de Cámara. Her principal goal was to promote classical music of Puerto Rico, which she pursued with the foundation of Música de Cámara two years after her debut at Carnegie Recital Hall on May 6, 1977.