Olga Pasichnyk studied at Kiev Conservatory and the Chopin Academy of Music in Warsaw. In 1992 she joined the chamber opera of Warsaw. Concerts have taken her throughout Europe, to the Chatelet and Salle Pleyel in Paris, the Concertgebouw Amsterdam, the Konzerthaus Berlin, the Palais des Beaux Arts in Brussels, the Tonhalle Zurich and to major venues in Japan, the United States and Australia.

Her performances have included Donna Anna (Don Giovanni) with the Freiburger Barockorchester led by Rene Jacobs; Pamina (Zauberflöte) at ONR Strasbourg; Handel rôles as Almirena (Rinaldo), Dalinda (Ariodante), Dorinda (Orlando) at Flanders Opera and the Bavarian State Opera, Bellezza (Il Trionfo del Tempo e del Disinganno) led by Marc Minkowski, Morgana (Alcina) at Paris Opera, the title rôle in Semele, Ginevra (Ariodante) at Aalto Theater Essen, Cleopatra (Giulio Cesare) in Warsaw, and Achille (Deidamia) at the Amsterdam Opera house.

She has worked with many distinguished conductors and made some fifty recordings.