Yumi Osaki was born in Japan in 1981. After graduating from the Tokyo National University of Fine Arts and Music (class of Emiko Harimoto and Hiroko Nakamura), she entered the Conservatoire National Supérieur de Musique de Paris where she studied with Jacques Rouvier and in Imola with Franco Scala and Maurizio Pollini. She pursued her studies with Marian Rybicki at the Ecole Normale de Musique de Paris from which she graduated in 2009. She has won many awards at international competitions including 3rd Prize at the Hamamatsu International Piano Competition in 1997, 5th Prize at the Long-Thibaud Competition in 1998, 5th Prize at the Arthur Rubinstein Competition in 2001, 2nd prize at the Pilar Bayona Competition in Zaragoza in 2001, 3rd Prize & F. Martin Special Prize at the Geneva Competition in 2002, and 3rd Prize at the Leeds Competition in 2003.
She participates in festivals around the world and has appeared in her native country with orchestras such as the Tokyo and Yomiuri Nippon Symphony orchestras, the Sendai Philharmonic, the New Japan Philharmonic and the Kanazawa Ensemble, and in Europe with the Polish National Radio Symphony Orchestra. She had already released three CDs dedicated to Chopin, Ravel and Debussy, which all received praise from audience and critics.